IQR

Find the range of the data.

16, 28, 6, 19, 21, 15, 22, 33, 17

• 18

• 27

• 30

• 12

Tags

CCSS.4.MD.B.4

Find the median, first quartile, third quartile, and interquartile range of the data.

32, 53, 72, 66, 47, 54, 49, 67, 71

• Median: 54

  First Quartile: 49

  Third Quartile: 67

  IQR: 18

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 21

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 22

• Median: 54

  First Quartile: 49

  Third Quartile: 69

  IQR: 20

Tags

CCSS.7.EE.B.3

What is the median?

• The end of a sentence

• The middle of the road

• The middle of the set of numbers

• My lunch

The first thing we do when we find the median is...

• add and divide

• nothing

• subtract each number

• order from least to greatest

Tags

CCSS.6.SP.B.5C

A principal recorded the number of students that attended each football game for six games. Her data is shown below.

75, 102, 64, 62, 93, 50

What is the interquartile range of her data?

• 25

• 31

• 52

• 36

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The quartiles of a data set divide the data into __________ equal parts?

• 2

• 1

• 4

• 5

The interquartile range is the difference between ____ and ____.

• Q2 and Q1

• Q3 and Q1

• Q3 and Q2

• Q3 and the mean

True or False
To find the IQR (interquartile range) you have to add the Q3 + Q1.

• True
• False

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5