Question

The mean number of hours that Raphael worked over the past four weeks is 37.75. If he works 40 hours this week, what will the mean number of hours be that he will have worked over the five-week period?
What is the five-week mean?

Answer 1

ok... so 4 weeks at an average of 37.75

so 4 x 37.75 will give you the total number of hours he worked..

add the 40 to that value and then divide the new total by 5 to get the new average?

Answer 2

38.2?

Answer 3

correct.

Answer 4

Wonderful! Thank you!