Shapes and Spread of Data

What is the range of the data?

• 100

• 110

• 50

• 150

How many students were greater than 55 inches tall but less than 70 inches tall?

• 13

• 15

• 16

• 17

The histogram shows the birth weights of 100 new born babies.  How many babies weighed 8 pounds or more?

• 22

• 23

• 30

• 45

How would you describe this distribution?

• Left skewed

• Uniform

• Right Skewed

• Symmetrical

Which of the following best describes the shape of the distribution?

• SKEWED LEFT

• SKEWED RIGHT

• UNIFORM 

• SYMMETRICAL

Which value is smaller, the mean or the median? Choose 2 answers.

• The mean is 22.5 The median is 22

• The mean is 20 the median is 22

• The median is smaller

• The mean is smaller

• The mean is 22 The median is 22.5

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, which ride typically has a longer wait time?

• No inference can be made from the graph.

• Topsy Turvy

• The wait times are the same for both rides.

• Rocket Blast

Which car club has the higher median?

• Cruisers

• Car Hops

• Their medians are the same

• You can not tell from the box plots

Which data set shows a greater spread (larger IQR)?

• Chess Club

• Checkers Club

• They have the same spread.

• You cannot tell from the box plots.

A distribution whose dot plot or histogram takes the form of a bell with most of the data clustered near the center and fewer points farther from the center

• Bell-Shaped Distribution

• Bimodal Distribution

• Skewed Distribution

• Uniform Distribution