Use the following information to answer questions 17-20.

An organization promoting good nutritional habits collected data on fat calories in foods from 9 fast-food restaurants in Mesa City. The values in the list below represent the number of fat calories in a small order of french fries at each of these fast-food restaurants.

160 , 106, 104, 113, 160, 103, 161, 89, 96

20. The organization collects data from 2 additional restaurants and includes the new data in the list. The number of fat calories in a small order of french fries at each of the 2 additional restaurants is designated by x and y, respectively. Which of the following expressions gives the average of this larger list of values?

Answer and Explanation

Your Answer is

Correct Answer is K

Explanation

Add two new data, and there are 11 data in total. The sum of all the numbers is divided by 11 to get the average of the 11 numbers. Therefore K.