概率问题请教。题目见内，

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- ♂ (0 bytes) () 05/06/2018 postreply 23:41:36

• Q2. even -tarryorange- ♂ (0 bytes) () 05/06/2018 postreply 23:47:56