Choose all of the measures of center.

• Mean

• Median

• Mode

• Range

• Interquartile Range

Range is

• the difference between the third quartile and the first quartile

• the difference between the greatest and least data values.

Interquartile Range is

• the difference between the third quartile and the first quartile

• the difference between the greatest and least data values.

What is the mode of the test grades?

What is the median of this data set?

• 8

• 12

• 15

• 19

What is the lower extreme and upper extreme of this data set?

• 6 and 8

• 6 and 19

• 8 and 15

• 15 and 19

What is the range of this data set?

• 6

• 12

• 13

• 19

What is the difference in the means?

• 0

• 0.25

• 0.5

• 0.75

• 1

Which has a greater spread?

• Zach

• Steven

• They have the same IQR

Choose all of the measures of spread.

• Mean

• Median

• Mode

• Range

• Interquartile Range