PLEASE HELP For the data set 7, 10, 10, 14, 14 17 the mean is 12. What is the mean absolute deviation
A. The mean absolute deviation is 18
B. The mean absolute deviation is 6
C. The mean absolute deviation is 12
D. The mean absolute deviation is 3

Respuesta :

Answer:

D. the absolute deviation is 3

Step-by-step explanation:

Given:

  • data = [7,10,10,14,14,17]
  • mean = 12

MAD:

[tex]\displaystyle \large{\dfrac{1}{n}\sum_{i=1}^{n}|x_i-m| = \dfrac{|x_1-m|+|x_2-m|+|x_3-m|+...+|x_n-m|}{n}}[/tex]

Therefore:

[tex]\displaystyle \large{MAD=\dfrac{|7-12|+|10-12|+|10-12|+|14-12|+|14-12|+|17-12|}{6}}\\\displaystyle \large{MAD=\dfrac{5+2+2+2+2+5}{6}}\\\displaystyle \large{MAD=\dfrac{18}{6}}\\\displaystyle \large{MAD = 3}[/tex]

Therefore, absolute deviation is 3