Can you guys help on simplifying 3 (-4)

M.A.D = 8

Step-by-step explanation:

Given:

Data set: 13, 0, 14, 36, 18, 9

Required:

Mean Absolute Value

SOLUTION:

Step 1: find the mean

Mean =

Step 2: find |data value – mean|

|13 - 15| = 2

|0 - 15| = 15

|14 - 15| = 1

|36 - 15| = 21

|18 - 15| = 3

|9 - 15| = 6

Step 3: find the sum of all absolute values gotten in step 2

2 + 15 + 1 + 21 + 3 + 6 = 48

Step 4: Divide what you have in step 3 by the number of the data set value given