如果观测值Xi近似相等,也不会影响回归系数的估计量。

如果观测值Xi近似相等,也不会影响回归系数的估计量。


相关考题:

下面程序段的运行结果是【 】。Option Base 1Private Sub swap(a()As InteSer)For I=1 to 10\2t=a(i)a(i)=a(10-1+1)a(10-1+1)=tNext1End SubPrivate Sub Form_Click()Dim x(10)As IntegerFor I=1 to 10x(i)=I*2Next1Swap x()For1=1 to 10Print x (i)Next IEnd Sub

执行下面的程序段,x的值为【 】。Private Sub Command1_Click()For i=1 To 9a=a+iNextx=Val(i)MsgBox xEnd Sub

下面程序的功能是统计字符串中"i"的个数,请填空。Sub COU()a$="Beijing University of Technology"Dim n As Integern=Len(a$)For i=1 To nb$= 【12】If 【13】 Then x=x + 1Next iPrint "x="; xEnd Sub

以下能够正确计算n!的程序是( )。A.Private Sub Command1_Click()n=5: x=1Dox=x * II=I + 1Loop While I nPrint xEnd SubB.Private Sub Command1_Click()n=5: x=1: I=1Dox=x * II=I + 1Loop While I nPrint xEnd SubC.Private Sub Command1_Click()n=5: x=1: I=1Dox=x * II=I + 1Loop While I =nPrint xEnd SubD.Private Sub Command1_Click()n=5: x=1: I=1Dox=x * II=I + 1Loop While I nPrint xEnd Sub

程序执行结果s的值是【 】.Private Sub Command l-Click ()I =0DoS= I +SI = I + lLoop Until I >=4End Sub

下面程序的功能是统计字符串中"i"的个数,请填空。Sub COU( )Dim n As Integera$=" Beijing University of Technology"n=Len(a$)For i=1 To nb$=【 】If b$="i" Then x=x+1NextPrint"x=" ; xEnd Sub

在窗体中添加一个名称为Command1的命令按钮,然后编写如下程序:Private Sub f(ByVal x As Integer)x=x+4End SubPrivate Sub Command1_Click()i=3Call f(i)If i>4 Then i=i*2End Sub窗体打开运行后,单击命令按钮,则消息框的输出结果为( )。

下面程序段的运行结果是【 】。Option Base 1Private Sub Swap (a() As IntegFor I=1 to 10\2t=a(I)a(I)=a(10-I+1)a(10-I+1)=tNext IEnd SubPrivate Sub Form_Click()Dim x(10) As IntegerFor I=1 to 10x(I)=I*2Next ISwap x()For I=1 to 10Print x(I)Next IEnd Sub

以下能够正确计算n!的程序是A.Private Sub Command1_Chck( ) n=5:x=1 Do x=x*i i=i+1 Loop While i<n Print x End SubB.Private Sub Command1_Click( ) n=5:x=1:i=l Do x=x*i i=i+1 Loop While i<n Print x End SubC.Private Sub Command1_Click( ) n=5:x=1:i=l Do x=x*i i=i+1 Loop While i<=n Print x End SubD.Private Sub Command1_Click( ) n=5:x=1:i=l Dox=x*i i=i+1 Loop While i>n Print x End Sub

有如下程序: Private Sub Commandl_Click( ) Dim i As Integer For i=1 To 2 DS Next i End Sub Sub DS( ) Dim x As Integer,m As String Static y,n X=X + 1 y=y + 1 m=m "*”:n=n"#" Print x,y,m,n End Sub 程序运行后,输出的结果是A.1 1 * #B.1 1 * #C.1 1 * # 1 1 * # 1 2 * #D.1 1 * # 1 1 * ## 1 2 * ##

以下能够正确计算n!的程序是A.Private Sub Command1 Click() n=5:x=1 Do x=x * I I=I + 1 Loop While I < n Print x End SubB.Private Sub Command1_Click() n=5:X=1:I=1 Do X=X*I I=I + 1 Loop While I <n Print x End SubC.Private Sub Command1_Click() n=5:X=1:I=1 Do X=X * I I=I + 1 Loop While I<=n Print X End SubD.Private Sub Command1_Click() n=5:X=1:I=1 Do x=x * I I=I + 1 Loop While I>n Print X End Sub

在窗体中添加一个名称为Commandl的命令按钮,然后编写如下程序:Pfivme Sub f(ByVal x As Integer)x=x+4End SubPfivate Sub Commandl_Click()i=3Call f(i)Ifi4 Then i=i*2MsgBOx IEnd Sub窗体打开运行后,单击命令按钮,则消息框的输出结果为______。

执行下面的程序段,x的值为 Private Sub Commandl_Click() For i=1 To 5 a=a+i Next i x=Val(i) MsgBox x End SubA.5B.6C.7D.8

以下能够正确计算n! 的程序是( )。A.Private Sub Command1_Click( ) n=5:x=l Do x=x*i i=i+1 Loop While i < n Print x End SubB.Private Sub Command1_Click( ) n=5:x=1:i=1 Do x=x*i i=i+1 Loop While i < n Print x End SubC.Private Sub Command1_Cliek( ) n:5:x=1:i=1 Do x=x* i i:i+1 Loop While i < = n Print x End SubD.Private Sub Command1_Cliek( ) n=5:x:1:i=1 Do x=x*i i=j+1 Loop While i > n Print x End Sub

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在窗体上画一个名称为CoilTlilandl的命令按钮,然后编写如下事件过程: Private Sub command1 Click() Dim m As Integer, i As Integer, x(3)As Integer For i=0 To 3:x(i)=i:Next i For i = 1 To 2: Call sub1(x,i):Next i For i = 0 To 3: Print x(i);: Next i End Sub Private Sub sub1(a()As Integer,k As Integer) Dim i As Integer Do a(k)=a(k)+a(k+1) j = j + 1 Loop While j < 2 End Sub 程序运行后,单击命令按钮,则窗体上显示的内容是A.0 3 7 5B.0 1 2 3C.3 2 4 5D.0 5 8 3

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以下能够正确计算n!的程序是( )。A.Pfivate Sub Commgld1_LClick() n=5:x=1 Do x=x*1 i=i+1 Loop Whilei<nB.Private Sub Command1_Click() n=5:x=1:i=1 Do x=x*1 i=i+1 Loop Whilei<n Print x End SubC.Pfivate Sub Command1_ C1ick() n=5:x=1:i=1 Do X=X*1 i=i+1 Loop While i<=nD.Private Sub Command1_C1ick() n=5:x=1:i=1 Do X=X*1 i=i+1 Loop While i>n Print x End Sub

以下能够正确计算n!的程序是( )。A.Private Sub Commandl_C1ick()B.hiVate Sub Commandl_C1ick() n=5:x=1 n=5:x=1:i=1 DO DO X=x*1 X=X*1 i=i+1 i=i+1 Loop while i<n Loop While<n Print x Ptinte x End Sub End SubC.Private Sub Commandl_Click ()D.Pdvate Sub Commandl C1ick() n=5:X=1:i=1 n=5=:x=1:i=1 DO DO X=X*1 X=X*1 i=i+1 i=i+1 Loop While i>n Print x Print x End Sub End Sub

执行下面的程序段,x的值为 Private Sub Command1_Click( ) For i=1 To 5 a=a+i Next i x=Val(i) MsgBox x End SubA.5B.6C.7D.8

9.程序执行结果s的值是 [9] 。Private Sub Commandl_Click()i = 0Doi = i + ls = i + sLoop Until i = 4Print sEnd Sub

以下定义的过程()是按“传值”方式传递参数的。A、Public Sub Sum(x,y)B、Public Sub Sum(ByVal x, ByVal y)C、Public Sub Sum(x As Integer,y As Integer)D、Public Sub Sum(x%, y%)

class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()  A、 0B、 1C、 2D、 Compilation fails.

单选题class Super {  public int i = 0;  public Super(String text) {  i = 1; }  }  public class Sub extends Super {  public Sub(String text) {  i = 2;  }   public static void main(String args[]) {  Sub sub = new Sub(“Hello”);  System.out.println(sub.i);  }  }  What is the result?()A 0B 1C 2D Compilation fails.