diff --git a/applications/lazstats/source/LazStats.lpi b/applications/lazstats/source/LazStats.lpi
index 9f727883d..5c53d9e47 100644
--- a/applications/lazstats/source/LazStats.lpi
+++ b/applications/lazstats/source/LazStats.lpi
@@ -1519,12 +1519,12 @@
         <UnitName Value="GroupFreqUnit"/>
       </Unit177>
       <Unit178>
-        <Filename Value="forms\misc\basicstatsreportfromunit.pas"/>
+        <Filename Value="forms\misc\basicstatsreportformunit.pas"/>
         <IsPartOfProject Value="True"/>
         <ComponentName Value="BasicStatsReportForm"/>
         <HasResources Value="True"/>
         <ResourceBaseClass Value="Form"/>
-        <UnitName Value="BasicStatsReportFromUnit"/>
+        <UnitName Value="BasicStatsReportFormUnit"/>
       </Unit178>
       <Unit179>
         <Filename Value="forms\misc\basicstatsreportandchartformunit.pas"/>
diff --git a/applications/lazstats/source/LazStats.lpr b/applications/lazstats/source/LazStats.lpr
index 4413f25c4..f02b58669 100644
--- a/applications/lazstats/source/LazStats.lpr
+++ b/applications/lazstats/source/LazStats.lpr
@@ -8,8 +8,7 @@ uses
   {$ENDIF}{$ENDIF}
   Interfaces, // this includes the LCL widgetset
   Forms, tachartlazaruspkg, tachartprint, lhelpcontrolpkg, Globals, LicenseUnit,
-  OptionsUnit, MainDM, MainUnit, BasicStatsReportFromUnit,
-BasicStatsReportAndChartFormUnit;
+  OptionsUnit, MainDM, MainUnit;
 
 {$R LazStats.res}
 
@@ -29,8 +28,6 @@ begin
   end;
   Application.CreateForm(TMainDataModule, MainDataModule);
   Application.CreateForm(TOS3MainFrm, OS3MainFrm);
-  Application.CreateForm(TBasicStatsReportAndChartForm,
-    BasicStatsReportAndChartForm);
   Application.Run;
 end.
 
diff --git a/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.lfm b/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.lfm
index 8b02408e8..14b64e8a4 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.lfm
+++ b/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.lfm
@@ -1,4 +1,4 @@
-object DescriptiveFrm: TDescriptiveFrm
+inherited DescriptiveFrm: TDescriptiveFrm
   Left = 526
   Height = 384
   Top = 202
@@ -8,32 +8,33 @@ object DescriptiveFrm: TDescriptiveFrm
   Caption = 'Descriptive Statistics'
   ClientHeight = 384
   ClientWidth = 900
-  OnActivate = FormActivate
-  OnCreate = FormCreate
-  Position = poMainFormCenter
-  LCLVersion = '2.1.0.0'
-  object ReportPanel: TPanel
-    Left = 343
-    Height = 384
-    Top = 0
-    Width = 557
-    Align = alClient
-    Anchors = [akTop, akLeft, akRight]
-    BevelOuter = bvNone
-    TabOrder = 0
-  end
-  object ParamsPanel: TPanel
-    Left = 8
-    Height = 368
-    Top = 8
+  inherited ParamsPanel: TPanel
+    Left = 16
+    Height = 352
+    Top = 16
     Width = 322
-    Align = alLeft
     BorderSpacing.Around = 8
-    BevelOuter = bvNone
-    ClientHeight = 368
+    ClientHeight = 352
     ClientWidth = 322
-    TabOrder = 1
-    object Label2: TLabel
+    inherited CloseBtn: TButton
+      TabOrder = 9
+    end
+    inherited ComputeBtn: TButton
+      AnchorSideBottom.Control = ParamsPanel
+      AnchorSideBottom.Side = asrBottom
+      TabOrder = 10
+    end
+    inherited ResetBtn: TButton
+      TabOrder = 8
+    end
+    inherited HelpBtn: TButton
+      TabOrder = 7
+    end
+    inherited ButtonBevel: TBevel
+      Top = 311
+      Width = 322
+    end
+    object Label2: TLabel[5]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideTop.Control = ParamsPanel
       Left = 0
@@ -43,14 +44,14 @@ object DescriptiveFrm: TDescriptiveFrm
       Caption = 'Variables'
       ParentColor = False
     end
-    object VarList: TListBox
+    object VarList: TListBox[6]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideTop.Control = Label2
       AnchorSideTop.Side = asrBottom
       AnchorSideRight.Control = AllBtn
       AnchorSideBottom.Control = OptionsGroup
       Left = 0
-      Height = 199
+      Height = 183
       Top = 17
       Width = 130
       Anchors = [akTop, akLeft, akRight, akBottom]
@@ -63,7 +64,7 @@ object DescriptiveFrm: TDescriptiveFrm
       OnSelectionChange = VarListSelectionChange
       TabOrder = 0
     end
-    object Label3: TLabel
+    object Label3: TLabel[7]
       AnchorSideLeft.Control = SelList
       AnchorSideTop.Control = ParamsPanel
       Left = 192
@@ -73,7 +74,7 @@ object DescriptiveFrm: TDescriptiveFrm
       Caption = 'Selected'
       ParentColor = False
     end
-    object SelList: TListBox
+    object SelList: TListBox[8]
       AnchorSideLeft.Control = AllBtn
       AnchorSideLeft.Side = asrBottom
       AnchorSideTop.Control = Label3
@@ -83,7 +84,7 @@ object DescriptiveFrm: TDescriptiveFrm
       AnchorSideBottom.Control = VarList
       AnchorSideBottom.Side = asrBottom
       Left = 192
-      Height = 199
+      Height = 183
       Top = 17
       Width = 130
       Anchors = [akTop, akLeft, akRight, akBottom]
@@ -94,7 +95,7 @@ object DescriptiveFrm: TDescriptiveFrm
       OnSelectionChange = VarListSelectionChange
       TabOrder = 4
     end
-    object InBtn: TBitBtn
+    object InBtn: TBitBtn[9]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideLeft.Side = asrCenter
       AnchorSideTop.Control = VarList
@@ -109,7 +110,7 @@ object DescriptiveFrm: TDescriptiveFrm
       Spacing = 0
       TabOrder = 1
     end
-    object OutBtn: TBitBtn
+    object OutBtn: TBitBtn[10]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideLeft.Side = asrCenter
       AnchorSideTop.Control = InBtn
@@ -126,7 +127,7 @@ object DescriptiveFrm: TDescriptiveFrm
       Spacing = 0
       TabOrder = 2
     end
-    object AllBtn: TBitBtn
+    object AllBtn: TBitBtn[11]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideLeft.Side = asrCenter
       AnchorSideTop.Control = OutBtn
@@ -141,60 +142,26 @@ object DescriptiveFrm: TDescriptiveFrm
       OnClick = AllBtnClick
       TabOrder = 3
     end
-    object CloseBtn: TButton
-      AnchorSideRight.Control = ParamsPanel
-      AnchorSideRight.Side = asrBottom
-      AnchorSideBottom.Control = ParamsPanel
-      AnchorSideBottom.Side = asrBottom
-      Left = 267
-      Height = 25
-      Top = 343
-      Width = 55
-      Anchors = [akRight, akBottom]
-      AutoSize = True
-      BorderSpacing.Top = 8
-      Caption = 'Close'
-      ModalResult = 11
-      OnClick = CloseBtnClick
-      TabOrder = 9
-    end
-    object HelpBtn: TButton
-      Tag = 119
-      AnchorSideRight.Control = ResetBtn
-      AnchorSideBottom.Control = ParamsPanel
-      AnchorSideBottom.Side = asrBottom
-      Left = 62
-      Height = 25
-      Top = 343
-      Width = 51
-      Anchors = [akRight, akBottom]
-      AutoSize = True
-      BorderSpacing.Top = 8
-      BorderSpacing.Right = 8
-      Caption = 'Help'
-      OnClick = HelpBtnClick
-      TabOrder = 7
-    end
-    object Label1: TLabel
+    object Label1: TLabel[12]
       AnchorSideLeft.Control = OptionsGroup
       AnchorSideTop.Control = CIEdit
       AnchorSideTop.Side = asrCenter
       AnchorSideRight.Control = CIEdit
       Left = 0
       Height = 15
-      Top = 308
+      Top = 292
       Width = 174
       BorderSpacing.Right = 8
       Caption = 'Confidence Interval for the Mean'
       ParentColor = False
     end
-    object OptionsGroup: TGroupBox
+    object OptionsGroup: TGroupBox[13]
       AnchorSideLeft.Control = ParamsPanel
       AnchorSideRight.Side = asrBottom
       AnchorSideBottom.Control = CIEdit
       Left = 0
       Height = 72
-      Top = 224
+      Top = 208
       Width = 306
       Anchors = [akLeft, akBottom]
       AutoSize = True
@@ -253,42 +220,13 @@ object DescriptiveFrm: TDescriptiveFrm
         TabOrder = 3
       end
     end
-    object Bevel1: TBevel
-      AnchorSideLeft.Control = ParamsPanel
-      AnchorSideRight.Control = ParamsPanel
-      AnchorSideRight.Side = asrBottom
-      AnchorSideBottom.Control = CloseBtn
-      Left = 0
-      Height = 8
-      Top = 327
-      Width = 322
-      Anchors = [akLeft, akRight, akBottom]
-      Shape = bsBottomLine
-    end
-    object ComputeBtn: TButton
-      AnchorSideRight.Control = CloseBtn
-      AnchorSideBottom.Control = ParamsPanel
-      AnchorSideBottom.Side = asrBottom
-      Left = 183
-      Height = 25
-      Top = 343
-      Width = 76
-      Anchors = [akRight, akBottom]
-      AutoSize = True
-      BorderSpacing.Top = 8
-      BorderSpacing.Right = 8
-      Caption = 'Compute'
-      OnClick = ComputeBtnClick
-      TabOrder = 10
-    end
-    object CIEdit: TEdit
+    object CIEdit: TEdit[14]
       AnchorSideLeft.Control = Label1
       AnchorSideLeft.Side = asrBottom
       AnchorSideRight.Side = asrBottom
-      AnchorSideBottom.Control = Bevel1
       Left = 182
       Height = 23
-      Top = 304
+      Top = 288
       Width = 41
       Alignment = taRightJustify
       Anchors = [akLeft, akBottom]
@@ -296,29 +234,19 @@ object DescriptiveFrm: TDescriptiveFrm
       TabOrder = 6
       Text = '95.0'
     end
-    object ResetBtn: TButton
-      AnchorSideRight.Control = ComputeBtn
-      AnchorSideBottom.Control = ParamsPanel
-      AnchorSideBottom.Side = asrBottom
-      Left = 121
-      Height = 25
-      Top = 343
-      Width = 54
-      Anchors = [akRight, akBottom]
-      AutoSize = True
-      BorderSpacing.Left = 8
-      BorderSpacing.Top = 8
-      BorderSpacing.Right = 8
-      Caption = 'Reset'
-      OnClick = ResetBtnClick
-      TabOrder = 8
-    end
   end
-  object Splitter1: TSplitter
-    Left = 338
+  inherited ParamsSplitter: TSplitter
+    Left = 350
+    Height = 384
+  end
+  object ReportPanel: TPanel[2]
+    Left = 355
     Height = 384
     Top = 0
-    Width = 5
-    ResizeStyle = rsPattern
+    Width = 545
+    Align = alClient
+    Anchors = [akTop, akLeft, akRight]
+    BevelOuter = bvNone
+    TabOrder = 2
   end
 end
diff --git a/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.pas b/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.pas
index 95b8f4b48..c43f19697 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/descriptiveunit.pas
@@ -7,60 +7,48 @@ interface
 uses
   Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
   StdCtrls, ExtCtrls, Buttons,
-  MainUnit, Globals, FunctionsLib, BasicStatsFormUnit, 
-  ReportFrameUnit, DataProcs, DictionaryUnit, ContextHelpUnit;
+  MainUnit, Globals, FunctionsLib, BasicStatsReportFormUnit, 
+  DataProcs, DictionaryUnit;
 
 
 type
 
   { TDescriptiveFrm }
 
-  TDescriptiveFrm = class(TBasicStatsForm)
-    Bevel1: TBevel;
-    ComputeBtn: TButton;
+  TDescriptiveFrm = class(TBasicStatsReportForm)
     CaseChk: TCheckBox;
     ZScoresToGridChk: TCheckBox;
     AllQrtilesChk: TCheckBox;
-    HelpBtn: TButton;
     Label2: TLabel;
     Label3: TLabel;
     ReportPanel: TPanel;
-    ParamsPanel: TPanel;
     PcntileChk: TCheckBox;
     OptionsGroup: TGroupBox;
     InBtn: TBitBtn;
     OutBtn: TBitBtn;
     AllBtn: TBitBtn;
-    ResetBtn: TButton;
-    CloseBtn: TButton;
     CIEdit: TEdit;
     Label1: TLabel;
-    Splitter1: TSplitter;
     VarList: TListBox;
     SelList: TListBox;
     procedure AllBtnClick(Sender: TObject);
-    procedure CloseBtnClick(Sender: TObject);
-    procedure ComputeBtnClick(Sender: TObject);
-    procedure FormActivate(Sender: TObject);
-    procedure FormCreate(Sender: TObject);
-    procedure HelpBtnClick(Sender: TObject);
     procedure InBtnClick(Sender: TObject);
     procedure OutBtnClick(Sender: TObject);
-    procedure ResetBtnClick(Sender: TObject);
     procedure SelListDblClick(Sender: TObject);
     procedure VarListDblClick(Sender: TObject);
-    procedure VarListSelectionChange(Sender: TObject; User: boolean);
+    procedure VarListSelectionChange(Sender: TObject; {%H-}User: boolean);
 
   private
     { private declarations }
-    FReportFrame: TReportFrame;
-    FAutoSized: Boolean;
     sum, variance, stddev, value, mean, min, max, range, skew, prob, df, CI : double;
     kurtosis, z, semean, seskew, sekurtosis, deviation, devsqr, M2, M3, M4 : double;
-    procedure UpdateBtnStates;
+
+  protected
+    procedure AdjustConstraints; override;
+    procedure Compute; override;
+    procedure UpdateBtnStates; override;
 
   public
-    { public declarations }
     procedure Reset; override;
   end; 
 
@@ -77,6 +65,18 @@ uses
 
 { TDescriptiveFrm }
 
+procedure TDescriptiveFrm.AdjustConstraints;
+begin
+  ParamsPanel.Constraints.MinHeight := AllBtn.Top + AllBtn.Height + OptionsGroup.Height +
+    CIEdit.Height + ButtonBevel.Height + CloseBtn.Height + VarList.BorderSpacing.Bottom +
+    OptionsGroup.BorderSpacing.Bottom + CloseBtn.BorderSpacing.Top;
+  ParamsPanel.Constraints.MinWidth := Math.Max(
+    4*CloseBtn.Width + 3*HelpBtn.BorderSpacing.Right,
+    OptionsGroup.Width
+  );
+end;
+
+
 procedure TDescriptiveFrm.AllBtnClick(Sender: TObject);
 var
   i : integer;
@@ -88,61 +88,7 @@ begin
 end;
 
 
-procedure TDescriptiveFrm.CloseBtnClick(Sender: TObject);
-begin
-  Close;
-end;
-
-
-procedure TDescriptiveFrm.FormActivate(Sender: TObject);
-var
-  w: Integer;
-begin
-  if FAutoSized then
-    exit;
-
-  ParamsPanel.AutoSize := true;
-  w := MaxValue([HelpBtn.Width, ResetBtn.Width, ComputeBtn.Width, CloseBtn.Width]);
-  HelpBtn.Constraints.MinWidth := w;
-  ResetBtn.Constraints.MinWidth := w;
-  ComputeBtn.Constraints.MinWidth := w;
-  CloseBtn.Constraints.MinWidth := w;
-  ParamsPanel.Constraints.MinHeight := AllBtn.Top + AllBtn.Height + OptionsGroup.Height +
-    CIEdit.Height + Bevel1.Height + CloseBtn.Height + VarList.BorderSpacing.Bottom +
-    OptionsGroup.BorderSpacing.Bottom + CloseBtn.BorderSpacing.Top;
-  ParamsPanel.Constraints.MinWidth := Math.Max(
-    4*w + 3*HelpBtn.BorderSpacing.Right,
-    OptionsGroup.Width
-  );
-  ParamsPanel.AutoSize := false;
-
-  Constraints.MinHeight := ParamsPanel.Constraints.MinHeight + ParamsPanel.BorderSpacing.Around*2;
-  Constraints.MinWidth := ParamsPanel.Constraints.MinWidth + ParamsPanel.BorderSpacing.Around*2;
-
-  Position := poDesigned;
-  FAutoSized := true;
-end;
-
-
-procedure TDescriptiveFrm.FormCreate(Sender: TObject);
-begin
-  Assert(OS3MainFrm <> nil);
-  if DictionaryFrm = nil then Application.CreateForm(TDictionaryFrm, DictionaryFrm);
-
-  Width := Scale96ToFont(DEFAULT_WIDTH);
-  Height := Scale96ToFont(DEFAULT_HEIGHT);
-
-  FReportFrame := TReportFrame.Create(self);
-  FReportFrame.Parent := ReportPanel;
-  FReportFrame.Align := alClient;
-  FReportFrame.ReportToolBar.Align := alRight;
-  FReportFrame.ReportToolbar.EdgeBorders := [];
-
-  Reset;
-end;
-
-
-procedure TDescriptiveFrm.ComputeBtnClick(Sender: TObject);
+procedure TDescriptiveFrm.Compute;
 var
   i, j, k, m: integer;
   nCases, noSelected: integer;
@@ -417,14 +363,6 @@ begin
 end;
 
 
-procedure TDescriptiveFrm.HelpBtnClick(Sender: TObject);
-begin
-  if ContextHelpForm = nil then
-    Application.CreateForm(TContextHelpForm, ContextHelpForm);
-  ContextHelpForm.HelpMessage((Sender as TButton).tag);
-end;
-
-
 procedure TDescriptiveFrm.InBtnClick(Sender: TObject);
 var
   i: integer;
@@ -462,23 +400,18 @@ begin
   UpdateBtnStates;
 end;
 
+
 procedure TDescriptiveFrm.Reset;
 var
   i: integer;
 begin
+  inherited;
   CIEdit.Text := FormatFloat('0.0', DEFAULT_CONFIDENCE_LEVEL_PERCENT);
   VarList.Clear;
   SelList.Clear;
   for i := 1 to NoVariables do
     VarList.Items.Add(OS3MainFrm.DataGrid.Cells[i,0]);
   UpdateBtnStates;
-  FReportFrame.Clear;
-end;
-
-
-procedure TDescriptiveFrm.ResetBtnClick(Sender: TObject);
-begin
-  Reset;
 end;
 
 
@@ -515,6 +448,8 @@ var
   lSelected: Boolean;
   i: Integer;
 begin
+  inherited;
+
   lSelected := false;
   for i := 0 to VarList.Items.Count-1 do
     if VarList.Selected[i] then
diff --git a/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas b/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
index f3a8a0cb3..262c34036 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/multxvsyunit.pas
@@ -101,7 +101,7 @@ var
   grps: StrDyneVec = nil;
   means: array[0..1] of Double = (0.0, 0.0);
   stdDevs: array[0..1] of Double = (0.0, 0.0);
-  selected: array[0..2] of Integer = (0, 0, 0);
+  selected: array of Integer = nil;
 begin
   // Get selected variables
   xCol := 0;
@@ -120,6 +120,7 @@ begin
     exit;
   end;
 
+  SetLength(selected, 3);
   selected[0] := xCol;
   selected[1] := yCol;
   selected[2] := grpCol;
diff --git a/applications/lazstats/source/forms/analysis/descriptive/normalityunit.lfm b/applications/lazstats/source/forms/analysis/descriptive/normalityunit.lfm
index a060a45fe..e25884918 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/normalityunit.lfm
+++ b/applications/lazstats/source/forms/analysis/descriptive/normalityunit.lfm
@@ -11,8 +11,7 @@ inherited NormalityFrm: TNormalityFrm
   OnActivate = FormActivate
   OnCreate = FormCreate
   Position = poMainFormCenter
-  LCLVersion = '2.1.0.0'
-  object ParamsPanel: TPanel
+  object ParamsPanel: TPanel[0]
     Left = 8
     Height = 500
     Top = 8
@@ -192,14 +191,14 @@ inherited NormalityFrm: TNormalityFrm
       ParentColor = False
     end
   end
-  object ParamsSplitter: TSplitter
+  object ParamsSplitter: TSplitter[1]
     Left = 332
     Height = 516
     Top = 0
     Width = 5
     ResizeStyle = rsPattern
   end
-  object PageControl: TPageControl
+  object PageControl: TPageControl[2]
     Left = 341
     Height = 500
     Top = 8
diff --git a/applications/lazstats/source/forms/analysis/descriptive/normalityunit.pas b/applications/lazstats/source/forms/analysis/descriptive/normalityunit.pas
index 48176c099..f85eb1762 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/normalityunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/normalityunit.pas
@@ -125,7 +125,7 @@ var
   DP: DblDyneVec = nil;
   mean, variance, stddev: Double;
   deviation, devSqr: Double;
-  M2, M3, M4, F1, DPP, t2: Double;
+  M2, M3, M4, DPP, t2: Double;
   A0, C1, D025, D05, D10, D15: Double;
 begin
   // Count of data values
diff --git a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.lfm b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.lfm
index 91f7a6376..8e15d2ef6 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.lfm
+++ b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.lfm
@@ -1,4 +1,4 @@
-object PlotXYFrm: TPlotXYFrm
+inherited PlotXYFrm: TPlotXYFrm
   Left = 427
   Height = 500
   Top = 175
@@ -11,8 +11,7 @@ object PlotXYFrm: TPlotXYFrm
   OnActivate = FormActivate
   OnCreate = FormCreate
   Position = poMainFormCenter
-  LCLVersion = '2.1.0.0'
-  object ParamsPanel: TPanel
+  object ParamsPanel: TPanel[0]
     Left = 8
     Height = 484
     Top = 8
@@ -324,14 +323,14 @@ object PlotXYFrm: TPlotXYFrm
       end
     end
   end
-  object ParamsSplitter: TSplitter
+  object ParamsSplitter: TSplitter[1]
     Left = 392
     Height = 500
     Top = 0
     Width = 5
     ResizeStyle = rsPattern
   end
-  object PageControl1: TPageControl
+  object PageControl1: TPageControl[2]
     Left = 405
     Height = 484
     Top = 8
diff --git a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
index d2e4a394c..27ad8742a 100644
--- a/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
+++ b/applications/lazstats/source/forms/analysis/descriptive/plotxyunit.pas
@@ -414,7 +414,7 @@ end;
 procedure TPlotXYFrm.PlotXY(XPoints, YPoints, UpConf, LowConf: DblDyneVec;
   XMean, YMean, R, Slope, Intercept: Double);
 var
-  tmpX, tmpY: array[0..1] of Double;
+  tmpX, tmpY: array of Double;
   xmin, xmax, ymin, ymax: Double;
   rightLabels: TListChartSource;
   topLabels: TListChartSource;
@@ -467,8 +467,9 @@ begin
   // Draw regression line
   if LineChk.Checked then
   begin
-    tmpX[0] := xmin;    tmpY[0] := tmpX[0] * slope + intercept;
-    tmpX[1] := xmax;    tmpY[1] := tmpX[1] * slope + intercept;
+    SetLength(tmpX, 2);  SetLength(tmpY, 2);
+    tmpX[0] := xmin;     tmpY[0] := tmpX[0] * slope + intercept;
+    tmpX[1] := xmax;     tmpY[1] := tmpX[1] * slope + intercept;
     ser := FChartFrame.PlotXY(ptLines, tmpX, tmpY, nil, nil, 'Predicted', clBlack);
     rightLabels.Add(tmpY[1], tmpY[1], 'Predicted');
   end;
diff --git a/applications/lazstats/source/forms/analysis/statistical_process_control/basicspcunit.pas b/applications/lazstats/source/forms/analysis/statistical_process_control/basicspcunit.pas
index ea1ee61d4..6641da781 100644
--- a/applications/lazstats/source/forms/analysis/statistical_process_control/basicspcunit.pas
+++ b/applications/lazstats/source/forms/analysis/statistical_process_control/basicspcunit.pas
@@ -204,6 +204,8 @@ var
   grp: String;
   i: Integer;
 begin
+  Result := nil;
+
   SetLength(ColNoSelected, 2);
   ColNoSelected[0] := GrpVar;
   ColNoSelected[1] := MeasVar;
@@ -401,8 +403,6 @@ end;
 
 
 function TBasicSPCForm.Validate(out AMsg: String; out AControl: TWinControl): Boolean;
-var
-   x: Double;
 begin
   Result := false;
   if GroupEdit.Visible and (GroupEdit.Text = '') then begin
diff --git a/applications/lazstats/source/forms/analysis/statistical_process_control/xbarchartunit.pas b/applications/lazstats/source/forms/analysis/statistical_process_control/xbarchartunit.pas
index 9b767d6e7..e2996663a 100644
--- a/applications/lazstats/source/forms/analysis/statistical_process_control/xbarchartunit.pas
+++ b/applications/lazstats/source/forms/analysis/statistical_process_control/xbarchartunit.pas
@@ -105,7 +105,7 @@ end;
 
 procedure TXBarChartForm.Compute;
 var
-  i, j: Integer;
+  i: Integer;
   upperSpec: Double = NaN;
   lowerSpec: Double = NaN;
   targetSpec: Double = NaN;
diff --git a/applications/lazstats/source/forms/misc/basicstatsformunit.lfm b/applications/lazstats/source/forms/misc/basicstatsformunit.lfm
index 1390d9336..a9122d331 100644
--- a/applications/lazstats/source/forms/misc/basicstatsformunit.lfm
+++ b/applications/lazstats/source/forms/misc/basicstatsformunit.lfm
@@ -1,8 +1,8 @@
 object BasicStatsForm: TBasicStatsForm
   Left = 519
-  Height = 459
+  Height = 452
   Top = 260
-  Width = 717
+  Width = 715
   Caption = 'BasicStatsForm'
   LCLVersion = '2.1.0.0'
 end
diff --git a/applications/lazstats/source/forms/misc/basicstatsparamsformunit.lfm b/applications/lazstats/source/forms/misc/basicstatsparamsformunit.lfm
index ee58fa963..3b27e58cd 100644
--- a/applications/lazstats/source/forms/misc/basicstatsparamsformunit.lfm
+++ b/applications/lazstats/source/forms/misc/basicstatsparamsformunit.lfm
@@ -1,5 +1,7 @@
 inherited BasicStatsParamsForm: TBasicStatsParamsForm
+  Width = 709
   Caption = 'BasicStatsParamsForm'
+  ClientWidth = 709
   Position = poMainFormCenter
   object ParamsPanel: TPanel[0]
     Left = 8
diff --git a/applications/lazstats/source/forms/misc/basicstatsparamsformunit.pas b/applications/lazstats/source/forms/misc/basicstatsparamsformunit.pas
index e441f487c..b298c0195 100644
--- a/applications/lazstats/source/forms/misc/basicstatsparamsformunit.pas
+++ b/applications/lazstats/source/forms/misc/basicstatsparamsformunit.pas
@@ -31,7 +31,7 @@ type
     procedure Activate; override;
     procedure AdjustConstraints; virtual;
     procedure Compute; virtual;
-    procedure InitForm;
+    procedure InitForm; virtual;
     procedure UpdateBtnStates; virtual;
     function Validate(out AMsg: String; out AControl: TWinControl): Boolean; virtual;
 
diff --git a/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.lfm b/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.lfm
index ca53d3b30..674209486 100644
--- a/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.lfm
+++ b/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.lfm
@@ -1,9 +1,36 @@
 inherited BasicStatsReportAndChartForm: TBasicStatsReportAndChartForm
+  Height = 450
+  Width = 716
+  Caption = 'BasicStatsReportAndChartForm'
+  ClientHeight = 450
+  ClientWidth = 716
+  inherited ParamsPanel: TPanel
+    Height = 434
+    ClientHeight = 434
+    inherited CloseBtn: TButton
+      Top = 409
+    end
+    inherited ComputeBtn: TButton
+      Top = 409
+    end
+    inherited ResetBtn: TButton
+      Top = 409
+    end
+    inherited HelpBtn: TButton
+      Top = 409
+    end
+    inherited ButtonBevel: TBevel
+      Top = 393
+    end
+  end
+  inherited ParamsSplitter: TSplitter
+    Height = 450
+  end
   object PageControl: TPageControl[2]
     Left = 312
-    Height = 443
+    Height = 434
     Top = 8
-    Width = 397
+    Width = 396
     ActivePage = ReportPage
     Align = alClient
     BorderSpacing.Left = 4
diff --git a/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.pas b/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.pas
index ff557fca3..40954dc4c 100644
--- a/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.pas
+++ b/applications/lazstats/source/forms/misc/basicstatsreportandchartformunit.pas
@@ -54,6 +54,13 @@ begin
 end;
 
 
+procedure TBasicStatsReportAndChartForm.InitForm;
+begin
+  inherited;
+  PageControl.ActivePageIndex := 0;
+end;
+
+
 procedure TBasicStatsReportAndChartForm.Reset;
 begin
   inherited;
diff --git a/applications/lazstats/source/forms/misc/basicstatsreportformunit.lfm b/applications/lazstats/source/forms/misc/basicstatsreportformunit.lfm
index 4b4a46086..4f55ba866 100644
--- a/applications/lazstats/source/forms/misc/basicstatsreportformunit.lfm
+++ b/applications/lazstats/source/forms/misc/basicstatsreportformunit.lfm
@@ -1,4 +1,29 @@
 inherited BasicStatsReportForm: TBasicStatsReportForm
+  Height = 449
+  Width = 711
   Caption = 'BasicStatsReportForm'
-  OnCreate = FormCreate
+  ClientHeight = 449
+  ClientWidth = 711
+  inherited ParamsPanel: TPanel
+    Height = 433
+    ClientHeight = 433
+    inherited CloseBtn: TButton
+      Top = 408
+    end
+    inherited ComputeBtn: TButton
+      Top = 408
+    end
+    inherited ResetBtn: TButton
+      Top = 408
+    end
+    inherited HelpBtn: TButton
+      Top = 408
+    end
+    inherited ButtonBevel: TBevel
+      Top = 392
+    end
+  end
+  inherited ParamsSplitter: TSplitter
+    Height = 449
+  end
 end
diff --git a/applications/lazstats/source/units/mathunit.pas b/applications/lazstats/source/units/mathunit.pas
index 85fde44bb..912e85e9b 100644
--- a/applications/lazstats/source/units/mathunit.pas
+++ b/applications/lazstats/source/units/mathunit.pas
@@ -275,7 +275,7 @@ end;
   DF degrees of freedom. }
 function ProbT(t, DF1: double): double;
 var
-  F, prob: double;
+  F: double;
 begin
   F := t * t;
   Result := ProbF(F, 1.0, DF1);