Question

115

Answer 1

Answer:

69

70.5

84

Step-by-step explanation:

Firstly, we need to sort this list of numbers in order to perform calculations on it.

$31, 43, 47, 58, 63, 68, 69, 72, 77, 84, 84, 84, 94, 97$

To find the mean we must add up and divide by the amount of numbers there are.

$31 + 43 + 47 + 58 + 63 + 68 + 69 + 72 + 77 + 84 + 84 + 84 + 94 + 97 = 971\\\frac{971}{14}=69.3571429\approx 69$

To find the median we must find the number in the middle of the set.

As there are two numbers in the middle positions, 69 and 72.

We must take the average of these two numbers to determine the middle.

$\frac{69+72}{2}=70.5$

The most is the most common number, which is 84.