Question

let z ~ standard normal random variable. find p(z < 1.25).
0.8944
0.1054
0.6056
0.3944

Explanation:

Step1: Use standard - normal table

We look up the value of 1.25 in the standard - normal (z - score) table. The standard - normal table gives the cumulative probability $P(Z < z)$ for a standard normal random variable $Z$ and a given $z$ - value.

Step2: Find the probability

Looking up $z = 1.25$ in the standard - normal table, we find that $P(Z<1.25)=0.8944$.

Answer:

0.8944