on a standardized exam, the scores are normally distributed with a mean of 250 and a standard deviation of…

on a standardized exam, the scores are normally distributed with a mean of 250 and a standard deviation of 40. find the z - score of a person who scored 362 on the exam.

on a standardized exam, the scores are normally distributed with a mean of 250 and a standard deviation of 40. find the z - score of a person who scored 362 on the exam.

Answer

Explanation:

Step1: Recall z - score formula

The z - score formula is $z=\frac{x-\mu}{\sigma}$, where $x$ is the data - point, $\mu$ is the mean, and $\sigma$ is the standard deviation.

Step2: Identify values

We are given that $\mu = 250$, $\sigma=40$, and $x = 362$.

Step3: Substitute values into formula

$z=\frac{362 - 250}{40}=\frac{112}{40}=2.8$

Answer:

$2.8$