概率问题请教。题目见内,

来源: JellyJelly 2018-04-10 05:23:37 [] [旧帖] [给我悄悄话] 本文已被阅读: 次 (305 bytes)

Let Z = Nb(2,1/4).  (there is a "d" above "=", means distribution. N means Negative)

Q1. Calculate P(Z > 8)

Q2. Is Z more likely to take on even values, or odd values? justify your answer.  

 

Thanks,

所有跟帖: 

Q1. 0.9221343994 -tarryorange- 给 tarryorange 发送悄悄话 (0 bytes) () 05/06/2018 postreply 23:41:36

Q2. even -tarryorange- 给 tarryorange 发送悄悄话 (0 bytes) () 05/06/2018 postreply 23:47:56

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