Question

What is the average (arithmetic mean) of 5,7,12, and 12?
a. 7
b. 8
c. 9
d. 12

Answer 1

c

Step-by-step explanation:

To find the average (arithmetic mean) of a set of numbers, you first sum up all the numbers and then divide by the total count of numbers.

For the given set {5, 7, 12, 12}:

Average: ( 5+7+12+12)/4

So, the correct answer is:

c. 9

Answer 2

The average (arithmetic mean) of 5, 7, 12, and 12 is 9 (c. 9).

Step-by-step explanation:

To find the average (arithmetic mean) of a set of numbers, you need to add up all the numbers and then divide the sum by the total number of values. In this case, we have 4 numbers: 5, 7, 12, and 12.

Adding these numbers together, we get 5 + 7 + 12 + 12 = 36.

Then, divide the sum by the total number of values (4). So, 36 ÷ 4 = 9.

Therefore, the average (arithmetic mean) of 5, 7, 12, and 12 is 9 (c. 9).