Scatter Plots, Functions, Two-Way Tables

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• 50 min

• 80 min

• 45 min

• 60 min

You are analyzing a scatter plot that has a negative association. What is true about the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• There is no line of best fit for this graph because there is no trend.

Of all the people who cannot bike to school, what is the relative frequency of boys?

• 4%

• 14%

• 13%

• 29%

How many people purchased no food and no drink?

• 60

• 10

• 20

• 200

Of all the blonde people, what percentage represents girls?

• 60%

• 32%

• 29%

• 40%

Out of all the people who like chocolate, what is the relative frequency for selecting a teen?

• 0.11

• 0.27

• 0.16

• 0.06

John plotted points on a graph to see if there was a relationship. Then he drew a line of best fit based on the fact that his line went through the most points possible.

Decide whether which statements are False.

• John's line of best fit is correct.

• John's line of best fit should be higher to be closer to all of the points.

• John's line of best fit should be lower so that it will go through more points.

The two–way frequency table below shows the number of customers who bought fruit that was either fresh or frozen at the grocery store. Select ALL that apply.

• Customers who bought oranges tended to pick fresh oranges.

• Customers who bought apples tended to pick frozen apples.

• Customers who bought fruit tended to pick frozen fruits.

• Customers who bought strawberries tended to pick fresh strawberries.