Median and Range and Iqr

Calculate the interquartile range of the following data17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

Calculate the interquartile range of the following data:
17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

Lizzy had test scores of:   72, 94, 108, 60
What is the RANGE of her test scores?

• 12

• 72

• 48

• 98

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142.
What is the range of Roger's scores?

• 193

• 127

• 60

• 66

Find the range of these numbers:
15,2,3,7,8,4,3,2,16,2,4

• 2

• 13

• 14

• 7

What is the range?

• average

• biggest-smallest

• the middle #

• # happening the most

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2

• Write them both as the answer

• Give up

• Pick one

Find the median of these numbers:
4,2,7,4,3

• 2

• 5

• 7

• 4

The number of miles that Kiki cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Kiki cycled?

• 24

• 36

• 39

• 52