Question

I really don’t understand what I’m supposed go do could anyone help at all

Answer 1

Mean of 5 remaining values = 19.2

Explanation:

• The mean value of a set of numbers is calculated by adding up all the numbers and dividing by the number of numbers in the set.
• If the mean value of 8 numbers is 17, then the sum of those 8 numbers is 8 * 17 = 136.
• If three of those numbers (9, 11, and 20) are discarded, then the sum of the remaining 5 numbers is 136 - (9 + 11 + 20) = 96.
• The mean value of the remaining 5 numbers is calculated by dividing the sum of those numbers by the number of numbers in the set. So, the mean value of the remaining 5 numbers is 96 / 5 = 19.2