In the past month, Ryan has had five pizzas delivered. He kept a record of how long it took to get the pizzas: 35 minutes, 25 minutes, 50 minutes, 40 minutes, and 70 minutes.

Based on this data, what is the range of time Ryan can expect for his next pizza to arrive?

• a.)
• 25 minutes
• b.)
• 45 minutes
• c.)
• 70 minutes
• d.)
• 44 minutes

get the pizzas: 35 minutes, 25 minutes, 15 minutes, 40 minutes, and 50 minutes.

Based on this previous data, what is the range of time he can expect it would take for his next pizza to arrive?

• a.)
• 15 minutes
• b.)
• 33 minutes
• c.)
• 35 minutes
• d.)
• 50 minutes

In the past month, Ryan has had five pizzas delivered. He kept a record of how long it took to get the pizzas: 35 minutes, 25 minutes, 20 minutes, 40 minutes, and 60 minutes.

Based on this previous data, what is the range of time he can expect it would take for his next pizza to arrive?

• a.)
• 20 minutes
• b.)
• 36 minutes
• c.)
• 40 minutes
• d.)
• 60 minutes

The following values represent the average temperature (in degrees Fahrenheit) in February for a particular city over the last 7 years:

20, 14, 28, 32, 27, 21, 25.

What is the interquartile range for the given data set?

• a.)
• 8
• b.)
• 13
• c.)
• 5
• d.)
• 18

The following values represent the average snowfall (in inches) in January for a particular city over the last 15 years:

23, 19, 28, 31, 26, 21, 17, 34, 32, 23, 27, 28, 30, 22, 29.

What is the interquartile range for the given data set?

• a.)
• 3
• b.)
• 6
• c.)
• 8
• d.)
• 17

The following values represent the average rainfall (in centimeters) in April for a particular city over the last 11 years:

24, 16, 29, 34, 26, 22, 18, 34, 30, 23, 21.

What is the interquartile range for the given data set?

• a.)
• 11
• b.)
• 18
• c.)
• 3
• d.)
• 9

A police officer decided to track the average temperature and count the number of motorcycle accidents he saw in a month.He noticed that as the temperature increased, so did the number of accidents.

Which of the following is TRUE?

• a.)
• The number of accidents is correlated to the temperature.
• b.)
• The number of accidents causes a change in the temperature.
• c.)
• The temperature causes a change in the number of accidents.
• d.)
• The number of accidents is not correlated to the temperature.

Identify the FALSE statement.

• a.)
• If X and Y are correlated, they also may have causation.
• b.)
• A correlation between X and Y indicates as X changes, Y will also change.
• c.)
• A correlation between X and Y indicates that as X changes, Y will not change.
• d.)
• If X and Y are causally related, they also must be correlated.

If variable X is correlated to variable Y, which of the following statements must be TRUE?

• a.)
• Changes in Y cause changes in X.
• b.)
• As X changes, Y changes as well.
• c.)
• Changes in X cause changes in Y.
• d.)
• As X changes, Y does not change.