Reasonable Fit Data Predictions

How long will Melissa wait if there are 6 people in front of her?

• 14 minutes

• 12 minutes

• 8.5 minutes

• 3 minutes

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

• 65

• 92

• 70

• 76

The scatterplot shows the relationship between the number of tickets bought and the amount of money spent buying tickets.  Which would be a reasonable prediction for the cost of buying 6 tickets?

• $8

• $15

• $12

• $10

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

What are the coordinates of the outlier?

• (9,3)

• (3,9)

• (2,0)

• (0,2)

What is the y intercept for this line of best fit?

• 10

• 5

• B

What are the coordinates of the outlier?

• (2,1)

• (4,3)

• (1,2)

Does this graph show an accurate line of best fit? Explain.

• Yes, because the line passes through all points.

• No, because the line does not pass through any points.

• Yes, because the line shows the general trend of the data.

• No, because the line is horizontal.

Sketch a line of best fit, then determine the equation of the line.

• y = x + 7

• y = -x + 7

• y = -1/2x + 5

• y = 1/2x + 5

Which equation could be the line of best fit for the data that would have a positive association?

• y = -x + 50

• y = -x - 60

• y = -2/3x + 50

• y = x + 60