Question

On a standardized exam, the scores are normally distributed with a mean of 27 and a standard deviation of 4. Find the z-score of a person who scored 17 on the exam.

Answer 1

The answer is "-2.5"

Explanation:

Given:

`\mu=27\\\\\sigma=4\\\\x=17\\\\z = ((x-\mu))/(\sigma) \\\\`

`= ((17-27))/(4)\\\\= (-10)/(4)\\\\=-2.5`