Question

Please help (90 points)

if the mean is 5 and these are the numbers 4, 3, 4, 5, 6, 6, 8, 4 what is the mean absolute deviation

Answer 1

1.20

Explanation:

4 = |5 - 4| = 1

3 = |5 - 3| = 2

4 = |5 - 4| = 1

5 = |5 - 5| = 0

6 = |5 - 6| = 1

6 = |5 - 6| = 1

8 = |5 - 8| = 3

4 = |5 - 4| = 1

Answer 2

1.25

Explanation:

Finding deviation of each value

• 4 = |5 - 4| = 1
• 3 = |5 - 3| = 2
• 4 = |5 - 4| = 1
• 5 = |5 - 5| = 0
• 6 = |5 - 6| = 1
• 6 = |5 - 6| = 1
• 8 = |5 - 8| = 3
• 4 = |5 - 4| = 1

Mean Absolute Deviation (M.A.D.)

• Sum of deviations / Number of terms
• 1 + 2 + 1 + 0 + 1 + 1 + 3 + 1 / 8
• 10/8
• 5/4
• 1.25