Question

Pete’s grade on a test was within 5 points of his class average of 94. What is his range of grades on the test?

Answer 1

I'm pretty sure it would be 89-99.

Answer 2

Answer: 89 to 99

Step-by-step explanation:

We know that the range of data is given by :-

$\overline{x}\pm E$, where $\overline{x}$ ios the average of data and E is the margin of error.

Given : Margin of error = $\pm 5$

Class average = $94$

Then, the range of grades on the test will be :-

$94\pm 5=(94-5,\ 94+5)=(89,\ 99)$

Hence, the range of grades on the test = 89 to 99