Box Plots and Dot Plots

What is the minimum value?

• 64
• 58
• 66
• 60

What is the median?

• 62
• 58
• 66
• 60

How do you calculate the IQR (interquartile range) ?

• Q2 - Q1

• Q1 - Q3

• Q3 - Q2

• Q3 - Q1

What is the interquartile range of these scores?

• 50

• 70

• 40

• 30

Find the interquartile range using the following.
Minimum:  1
Q1:  3
Median:  5
Q3:  7
Maximum:  9

• 8
• 4
• 5
• 10

What is the range of homework assignments for class 2? Recall range is the largest number - smallest number. (max - min)

What do points B and D represent on the box plot?

• Mean and Mode

• Mean and Median

• Least and Greatest Value

• First and Third Quartiles

Students recorded the amount of minutes they spend watching TV. Using the box plot shown above, what is the first quartile?

• 30

• 24

• 60

• 78

How do I find the Interquartile Range (IQR) on a box plot?

• Add the min. and max.

• Add Q1 and Q3

• Subtract Q1 and Q3

• Subtract the min. and max.

Based on the box plot above, how do I find the IQR?

• 45 - 33

• 45 + 33

• 23 + 58

• 58 - 23