Scatter Plots Predictions

Which line is the best fit line for this scatter plot?

• a

• b

• c

• d

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

Tags

8.5.D

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

• A

• B

• C

• D

Tags

8.5.D

The scatterplot represents the heights and weights of a group of people.

Based on the trend line, what would be the weight of a person who is 72 inches tall?

• About 180 lbs

• About 163 lbs

• About 153 lbs

• About 145 lbs

Tags

8.5.D

The scatterplot shows the cost, in dollars, of five different ladders. Each ladder is a different length.

Based on this scatterplot, use a trend line to predict the cost of a 6 foot ladder.​ ​ (a)  

• $65

• $40

• $75

• $45

• $50

Tags

8.5.D

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

Tags

8.5.D

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Tags

8.5.D

Select the statement that best describes the line.

• The line is the line of best fit.

• The line is NOT a line of best fit because it does not pass through two points.

• The line is NOT a line of best fit because it does not go through the middle of the data set.

• The line is NOT a line of best fit because it does not go through the origin.

Tags

8.5.D

Based on this scatterplot, approximate the height of the vertical leap of a 10-year old girl.

• 12 inches

• 8 inches

• 8 years

• 12 years

Tags

8.5.D

The graph shows how the number of inches of rain impacts the growth of a plant in inches. Based on the scatterplot, what is the best prediction of the number of inches a plant will grow after 4 inches of rain?

• A plant is expected to grow 0.8 inches after 4 inches of rain.

• A plant is expected to grow 0.2 inches after 4 inches of rain.

• A plant is expected to grow 1.5 inches after 4 inches of rain.

• A plant is expected to grow 1 inch after 4 inches of rain.

Tags

8.5.D