Question

For some positive value of Z, the probability that a standardized normal variable is between 0 and Z is 0.3340. The value of Z is A) 0.97 B) 0.37 C) 0.07 D) 1.06

Answer 1

Hi,

Answer A: 0.97

Explanation:

`p(0\leq Z\leq a)=0.3340 \Longrightarrow\ p(\infty\leq Z\leq a)=0.5+0.3340=0.8340\\In\ table\ ,we\ find\ a=0.97\\`