Measures of Central Tendency Box and Whisker

What is the IQR of the box and whisker plot below?

• 7

• 14

• 9

• 8

Using the data below, identify the first quartile median.

• 20

• 19

• 17

• 18

Using the data below, identify the third quartile median.

• 18.5

• 27

• 18

• 20

Which box and whisker plot has the highest median?

• Top plot

• Bottom plot

What is the minimum value?

• 64

• 58

• 66

• 60

What value is the lower quartile?

• 66

• 58

• 60

• 64

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

A way to describe the concentration and the spread of data in a set is a _____________

• histogram

• stem-and-leaf plot

• box-and-whisker plot

• line graph

The _________ is the difference between the upper quartile and the lower quartile.

• range

• interquartile range

• outlier

• median

Use the following box and whisker plot to identify what percent of scores are below 82?

(a)