Suppose a random variable $x$ is best described by a normal distribution with $\mu = 60$ and $\sigma = 12$. Find the $z$-score that corresponds to the value $x = 72$.
A) 5
B) 1
C) 12
D) 72

Question

Quizplus · Accepted Answer

The z-score is calculated as (x - mu) / sigma, where x is the value of the random variable, mu is the mean, and sigma is the standard deviation. In this case, x = 72, mu = 60, and sigma = 12. Plugging these values into the formula, we get (72 - 60) / 12 = 1. Therefore, the z-score that corresponds to the value x = 72 is 1.

Suppose a Random Variable xxx Is Best Described by a Normal Distribution With

Suppose a Random Variable $x$ Is Best Described by a Normal Distribution With