NO.PZ2018062016000081
问题如下：
Given a discrete uniform distribution, the possible outcome includes 25 integers from 1 to 25, which of the following is the corrcet value of P( 5 ≤ X < 10 ) ?
选项：
A.
0.04.
B.
0.20.
C.
0.50.
解释：
B is correct. The possible outcome includes 25 integers, each integer has a probability of 0.04. P(5 ≤ X < 10) = P(5) + P(6) + P(7) + P(8) + P(9) = 0.04×5 = 0.20.
请问这道题的问题是什么？单词打错了吗？
