Puppylooloo392
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For the data set 3,3,9,12,13, the mean is 8.What is the mean absolute deviation?

A.The mean absolute deviation is 5.
B.The mean absolute deviation is 20.
C.The mean absolute deviation is 4.
D.The mean absolute deviation is 8.

Respuesta :

abidemiokin

The mean absolute deviation is 4

Mean absolute deviation

The formula for calculating the mean absolute deviation is expressed as:

M = (x - mean)/n

where

  • n = 5

Substitute to have:

M = (3-8)+(3-8)+(9-8)+(12-8)+(13-8)/5

M = 5+5+1+4+5/5

M = 20/5

M = 4

Hence the mean absolute deviation is 4

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madelinerm221

Answer: C.

The mean absolute deviation is 4.

explanation:

1. SUBTRACT ALL NUMBERS FROM THE MEAN (8)

3-8 = 5

3-8 = 5

9-8 = 1

12-8 = 4

13-8 = 5

2. NOW ADD AND THEN DIVIDE BY THE

AMOUNT OF NUMBERS THERE IS!

5+5+1+4+5 = 20÷5 = 4