Question

The manager of a dress shop recorded the number of dresses sold during the week, the data is as follows:

17, 15, 16, 20, 15, 19
Find the mean deviation for this data.

Select one:

1.91

2.21

1.67

4.98

Answer 1

1.67

Explanation:

`(17 + 15 + 16 + 20 + 15 + 19)/(6) = (102)/(6) = 17`

distance from 17

17, 0

15, 2

16, 1

20, 3

15, 2

19, 2

`(0 + 2 + 1 + 3 + 2 + 2 )/(6) = (10)/(6) = 1.67`

Answer 2

Answer: The answer is 1.67

Step-by-step explanation:

First, find the mean by adding all of the numbers and divide them by how many numbers there are, so 17+15+16+20+15+19=102 Then 102/6= 17. Then take the mean and subtract it by every number, and make sure it is the number’s absolute value.

17-17=0, 15-17=2, 16-17=1, 20-17=3, 15-17=2, 19-17=2. Then add all of those numbers and divide them by how many numbers there are. 0+2+1+3+2+2=10. 10/6=1.67