Boxplots Line Plots Histograms

How many employees have a salary less than $22,000?

• 50

• 350

• 0

• 10

What does each 'x' represent?

• carats

• jewelry store

• rings

What is the difference between the medians?

• 16

• 12

• 8

• 4

How many people went to the amusement park fewer than 3 times?

• 1

• 2

• 10

• 8

How many people watched less than 11 hours of TV last week?

• 48

• 90

• 20

• 65

More people had between __ and __ cups of coffee than any other range.

• 0-3

• 8-11

• 12-15

• 16-19

This list shows the ages of 13 children at a playground.

5, 4, 7, 6, 5, 3, 2, 5, 7, 8, 4, 6, 6

Which line plot shows the number of students at each age?

• 
• 
• 
• 

Which is true of every box plot?

• Both sides of the box are the same size

• The distance between the min and Q1 is the same as the distance between Q3 and the max

• About half of the data is captured by the box

• The median is one half of the maximum

Answer explanation

When data is skewed in different directions, the sides of the box might be a different size, Q3, Q1 or even the median could be shifted left or right on the number line.

Which are true based on the boxplots?

• The median distance at the Olympics is higher than at U.S. qualifying

• There is greater variability among U.S. qualifiers

• The centers of the data sets are similar

• It is not likely the U.S. won this event

Which of the following are true about these box plots?

• The variability of lifespans in captivity is higher than the variability of life spans in the wild

• The birds typically live longer in captivity than in the wild

• The longest living bird in the wild roughly matches the median bird in captivity

• The center of lifespans in the wild is higher than the center of life spans in captivity