Mean, Median, and Range

Range measures what?

• Center

• Cuteness

• Variability

• Weight

Find the mean.
90, 100, 95, 85, 60, 80

• 85

• 84

• 86

• 90

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5

• 6

• 9

• 11

The median is

• The middle score

•  Scores added & divided by the number of scores

• The most frequent score

• The middle when in order

The mean is

• The middle score

•  Total & divided by number of scores

• The most frequent score

• The middle when in order

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most

Find the mean:
28, 18, 19, 18, 17

• 20

• 18

• 11

• 19

What is the mean for these numbers?
5,5,5,5

• 5

• 20

• 15

• 100

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91

• 273