Scatter Plot and Line of Best Fit Review

What is the equation of the line of best fit?

• y= 2x

• y=3x+7

Q1. What is the trend observed in the data?

• A) positive trend

• B) negative trend

• C) no trend

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 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?

• There is a negative relationship between height and weight

• There is a positive relationship between height and weight

• There is a constant relationship between height and weight

• There is no relationship between height and weight

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

What are the coordinates of the outlier?

• (3,4)

• (4,3)

• (3,10)

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

• 10

• 5

• B

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

What are the coordinates of the outlier?

• (6,9)

• (9,6)

• What outlier

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57

• f(x) = 5.57x + 25.05

• f(x) = -5.57x + 25.05

• f(x) = 5.57x - 25.05