Spread Center Outliers Comparing

Compare the two histograms, select the true statement.

• The histogram on the left has a larger standard deviation than the histogram on the right.

• The histograms appear to have roughly the same center and symmetric distributions.

• The histogram on the right has a larger spread than the histogram on the left.

• The IQR for the two histograms will be equal.

The back-to-back stemplot shows the heart rate of a group of people before and after exercise. Select the false statement below.

• Both pulse rate stemplots are skewed right.

• The pulse rates stemplot 'after exercise' has a higher center than the stemplot when resting.

• The stemplot for 'resting' has a larger spread/range than 'after exercise'

• Both stemplots appear to have outliers.

Which group has a larger interquartile range?

• Group A

• Group B

• They're the same

Which group has a higher median reaction time?

• Group A

• Group B

• They're the same

Which group contained the person with the fastest response time?

• Group A

• Group B

• They're the same

Select the answer that is a true statement.

• 25% of Group A's reaction times are greater than roughly 100% of Group B's.

• 50% of Group A's reaction times are greater than 75% of Group B's.

• 75% of Group A's reaction times are greater than 50% of Group B's

What is the IQR of the Cruisers?

• 4

• 6

• 13

• 9

Which car club has the higher median?

• Cruisers

• Car Hops

100% of the Car Hops data is greater than what percent of the Cruisers data?

• 25%

• 50%

• 75%

• 100%

Which restaurant has a higher median wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same