Scatter Plot Line of Fit

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

Use the equation of the trend line y = 8.77x + 686 to predict what the hiker's elevation will be after 145 minutes. Round to the nearest whole number of feet.

Select all that describe the type of association shown in the scatter plot.

• postive

• negative

• linear

• strong

• weak

In the equation of the line of best fit, the m stands for?

• the slope

• the y-intercept

• the x-intercept

• the strength of the data points

Tags

CCSS.8.EE.B.5

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

Using the scatterplot and best fit line, estimate what the resting heart rate is after 2 hours of exercise.

• 65

• 85

• 72

• 62

Which equation best represents the data?

•  y = 3/4x + 1

•  y = 4/3x - 1

•  y = -3/4x - 1

•  y = -4/3x - 1

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

• Yes

• No

• The more you miss school the higher your grade will be.

• The more days that you are absent the lower your grade will be.

• There is no correlation between days absent and your grade.

Tags

CCSS.HSF-LE.A.1B

The scatter plot has a outlier.

• True

• False