52. The average of 10 test scores is x. When the highest score and lowest score are removed from the 10 scores, the average is y. Which of the following is an expression for the average of the highest score and lowest score?

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

The sum of the data of the previous group (10x) minus the sum of the data of the latter group (8y) is the sum of the maximum and minimum values, divided by 2 to get the average