设样本空间 , 事件发生的概率为 ( )-刷刷题APP

【单选题】若产品之区分合格与不合格,并记合格品为“1”,不合格品为“0”。检查两件产品的样本空间为Ω={(0,0),(0,1),(1,0),(1,1)},则事件A={(1,1),(1,0),(0,1)}用语言表示的意义是________。

A.

至少有一件合格品

B.

至少有一件不合格品

C.

恰好有一件不合格品

D.

至多有两件合格品

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【简答题】将一枚均匀硬币相继投掷三次，观察出现的面，记Ai={恰有i个正面}，i=1，2，3，A={有一个正面}，B={没有一个正面}，C={至多一个正面}，D={至少两个正面}．(1)试写出该试验的样本空间；(2)试用A1，A2，A3表示A，B，C，D．

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【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...

A.

Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

B.

Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

C.

Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

D.

Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub

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