Chapter 12.4, Problem 17PPE

To determine

To find: The percentile rank of test score of $80$ .

Answer to Problem 17PPE

  $60$ .

Explanation of Solution

Given information:

Out the $10$ test scores, there are $6$ scores less than or equal to $80$ .

Calculation:

A percentile rank of a data value is the percentage of data values that are less than and equal to that value.

Out the $10$ test scores, there are $6$ scores less than or equal to $80$ .

Therefore percentile rank of $80$ would be $\frac{6}{10}=60\%$ .