Scatter Plots: Line of Best Fit

Presentation

•

Mathematics

•

8th Grade

•

Easy

•

CCSS

8.EE.B.5, 6.NS.B.3, HSF-LE.A.1B

Standards-aligned

KAYLA LOBACK

Used 5+ times

FREE Resource

11 Slides • 21 Questions

Warm-up

Multiple Choice

What type of correlation does this graph have?

Negative

no association

positive

Multiple Choice

What type of correlation does this graph have?

positive

negative

none

all of the above

Multiple Choice

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

Multiple Choice

What type of correlation does this scatter plot show?

positive

negative

no correlation

nonlinear association

Multiple Choice

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?

Multiple Choice

The number of siblings you have and your weight.

Positive correlation

Negative correlation

No correlation

All of the above

Multiple Choice

The number of notebooks bought and the total cost.

positive association

negative association

no association

Line of Best Fit

or

Best Fit of Line

Line of Best Fit

Video Presentation

Will NOT have a trend line!

No Correlation/ Association

Your Turn!

Multiple Choice

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

Yes

Multiple Choice

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

Yes

Multiple Choice

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

Multiple Choice

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.

Multiple Choice

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

There is no line of best fit for this graph

Multiple Choice

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

Multiple Choice

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

Multiple Choice

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

There is no line of best fit for this graph.

Multiple Choice

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

Multiple Choice

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

103

100

Multiple Choice

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

Warm-up

Show answer

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