Unit 9 Quiz Review

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

• A

• B

• C

• D

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

• Yes

• No

Which scatter plot shows a negative relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Which scatter plot shows no relationship?

• Graph A

• Graph B

• Graph C

• Graph D

Which scatter plot show a positive relationship?

• Graph A

• Graph B

• Graph C

• Graph D

What type of correlation does this graph have?

• Negative 

• no association

• positive 

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

• 6

• 50

• 55

• 59

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade. 

• No relationship exists between the number of books students read and their English grades. 

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump

• negative: the less you run the less distance of your jump

• positive: the further your running start the less your distance

Hector surveyed 500 people and asked them how far they drive to work and what the last digit of their phone number is. He used the results to make a scatter plot.

What type of association should he expect to see in the scatter plot?

• Positive Association

• Negative Association

• No Association