Question

Find the mean absolute deviation of the data set. {1, 1, 2, 3, 8}

Answer 1

1.8

Explanation:

Median is 2

find the difference from each number to the median.

1,1,2,3,8

Difference: 1,1,0,1,6

add them together

1+1+0+1+6=9

divide by the amount of numbers: 9/5=1.8

Answer 2

The mean is the average of the numbers.
It is easy to calculate: add up all the numbers, then divide by how many numbers there are.
1+1+2+3 +8 = 15
15÷5 = 3