设X~N(3,4),若P(X<c)=P(X≥c),则c等于()?
3
举一反三
内容
- 0
设 X~N(3,22),若 P(X>c)= P(X≤c),则 c =
- 1
设随机变量X~N(3,22),若则P{X≥c}=P{X
- 2
设X~N(3,22),则当P(X>c)=P(X A: 0 B: 2 C: 3 D: 4
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设X~N(-1,4),则P(X>-5)=,P(X=4)=
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设随机变量X~N(3,22),且P{X>c}=P{X≤c},则常数c= A: 0 B: 2 C: 3 D: 4