Algebra Module 2 Section 3 Pt 2 Box Plots

25% of the students sent _______ or fewer texts in two minutes.

What is the IQR of the data set? (IQR = interquartile range, the range of the inner box)

What is the maximum number of text messages sent in two minutes?

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

The minimum value of the data set is ______.

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

The maximum value of the data set is ______.

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

What is the median of the data set ___

• Median is 17

• Median is 19

• Median is 9

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

What is the Q1 (lower quartile/median of the lower half) of the data set ___

• Q1 is 9

• Q1 is 11

• Q1 is 13

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

What is the Q3 (upper quartile/median of the lupper half) of the data set ___

• Q1 is 21

• Q1 is 27

• Q1 is 24

Consider the following data set data values.

4, 9, 13, 17, 21, 27, 31

HINT: IQR is the difference between the medians of each half of data.

What is the IQR of the data set ___

• IQR is 17

• IQR is 19

• IQR is 18

What data value is the upper quartile (Q3)?

• 64
• 62
• 66
• 58