Unit 6 Review

Which Table represents the Venn Diagram

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A car deal does a quick inventory of the automobiles currently available on his used car lot. There are 22 cars and 17 trucks on the lot. 10 of the cars are red and the remaining cars are equally divided between white and blue. Four of the trucks are red, six are white and the remaining trucks are blue. Which two-way table represents the situation?

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A survey was done that asked people to indicate whether they preferred running outdoors or running indoors. The results are show in the table.

What is the relative frequency (rounded to the nearest hundredth) of a person age 30 or younger who prefers to run outdoors?

• 0.10

• 0.37

• 0.66

• 0.29

The scatter plot show the number of cars and trucks sold by 10 different employees at an automobile dealership during a month.

How many employees sold more than 6 trucks?

• 4

• 5

• 6

• 7

What would be a good estimation of the correlation coefficient for the data displayed in the scatter plot?

• r = 0.95

• r = 0

• r = -0.59

• r = -0.95

What is the correlation coefficient r for the data set?

Round your answer to the nearest hundreth

• 1.00

• 0.99

• 0.98

• 1.99

Describe the association between the two variables shown in the scatter plot. CHOOSE TWO!

• Positive

• Negative

• Strong

• Weak

Which correlation is most like causation?

• The positive correlation between the depth of a pond and the depth of a nearby stream.

• The positive correlation between the sales of peanuts and the sales of paper towels at a store.

• The positive correlation between the number of volunteers collecting trash and the number of trash bags collected.

• The positive correlation between the wait times for the Ferris wheel and the number of people in line to get a hot dog at the fair.

A survey shows a strong positive correlation between ice cream sales and shark attacks. What could be the lurking variable in the example?

• location

• warm weather

• shark population

• ice cream supply chain

Which linear function best fits the data set?

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