Question

A new website was reviewed by 58 people. The creator of the website surveyed 8 of the reviewers at random. He asked them to rate the website on a scale from 1 to 10. Their ratings are below.

4, 7, 9, 5, 4, 9, 9, 5

Assuming that the sample was representative of all reviewers, what was the mean rating of the website for all reviewers?
A. 6.5
B. 6.25
C. 4.5
D. 6

Answer 1

Add up the data values: 4+7+9+5+4+9+9+5 = 52

Divide that sum by 8 (which is the sample size) to get 52/8 = 6.5

Answer: Choice A) 6.5