Question

The closed points are stacked vertically over the numbers as follows: 0 closed points over 0; 1 closed point over 1; 2 closed points over 2; 4 closed points over 3; 2 closed points over 4, and 1 closed point over 5.


A soccer team tracks the number of goals they score in a game on the dot plot. Complete the table to record the deviation of each data point.

(2 points)
This table is used to calculate the deviation of each listed data point from a specified value.
Data Point 1 2 3 4 5
Deviation

Answer 1

First find the mean: (1 + 2+2 + 3+3+3+3 + 4+4 + 5)/10 = 30/10 = 3.
Deviation = data point − mean:

Data Point: 1 2 3 4 5
Deviation: -2 -1 0 1 2

(Verify: the deviations sum to 0.)