Question

The first week at Javier's new job he spent $12.48, $9.50, $10.25, $4.99, and $8.59 on lunch.

In the second week, he spent $3 more in total for the 5 lunches than the first week.
What is the increase in the mean for the second week compared to the first?
Round the answer to the nearest penny.

Answer 1

The answer is $0.60.

Calculate the mean of the first week

Calculate the mean of the second week

Subtract the mean for the first from the mean of the second week.