Comparing Central Tendency

31

36

39

41

Mean

Median

Mode

Range

 19 points per game

95 points per game

18.6 points per game

22 points per game

21

56

7

18

The average test score is higher for period 5, but the data is more spread out.

The average test score is higher for period 1, but the data is more spread out.

The average test score is higher for period 5, and the data is more consistent (closer to the mean) than period 1.

The average test score is higher for period 1, and the data is more consistent (closer to the mean) than period 5.

The first-period class had a higher median score than the second-period class.

The second-period class scores had a higher mean than the first-period class scores.

The first-period class scores had a greater range than the second-period class scores.

The second-period class scores had a greater mean absolute deviation than the first-period class scores.

greater than

less than

equal to

Mode

Median

Mean

Range

3 less than

1 more than

1 lessthan

2 more than

2 less than

3 more than

4 more than

4 less than

equal to

Class 1 has the larger mean and standard deviation

Class 2 has the larger mean and standard deviation

Class 1 has the larger mean, but the smaller deviation

Class 2 has the larger mean, but the smaller deviation