Scatterplots and Best-Fit Lines

Predict the grade of a student that has 7 absences.

• 50

• 45

• 70

• 60

Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?

• 8,300

• 7,300

• 8

• 9,300

What is the best prediction for the number of candies in the jar when 30 students visit her?

• 90

• 180

• 135

• 150

identify the outlier

• 30, 100

• 100, 30

• there is no outlier

The equation of the trend line is y= 1/2x +1
How many laps can a bicycle make around the park in 23 minutes?

• 44 laps

• 12 1/2 laps

• 23 laps

Select all the terms that describe this scatter plot.

• Positive

• Negative

• No Association

• Linear

• Non-Linear

Phil collected data from several of his friends about the number of hours they spent sleeping and the number of hours they spent playing video games on Saturday. He recorded the data in the scatterplot. Based on the scatterplot, what is the best prediction of the number of hours one of Phil's friends spends sleeping when the friend spends 1 hour playing video games?

• 9 hours

• 11 hours

• 7 hours

• 8 hours

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes

• No

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Make a prediction for a resting heart rate after 6 hours of exercise a week.

• 6

• 50

• 55

• 59