5-7 Scatter Plots and Lines of Fit A

Determine whether each graph shows a positive correlation, a negative correlation, or no correlation.

• positive correlation

• negative correlation

• no correlation

Tags

CCSS.HSS.ID.B.5

Determine whether each graph shows a positive correlation, a negative correlation, or no correlation.

• positive correlation

• no correlation.

• negative correlation

Tags

CCSS.HSS.ID.B.5

If there is a correlation, describe it.

• as time

  increases, the number of funds decreases

• the number of years increases, the number of funds increases

• as time

  decreases, the number of funds increase

Write the slope-intercept form of an equation for the line of fit.

The line of fit shown passes through

(1993, 16) and (1999, 5.7).

• y = -1.7x + 3404

• y = -1.55x - 3093.5
• y = 1.55x + 3093.5
• y = -1.55x + 3093.5

Use (1997, 13) and (2005, 22) to find the slope.

• 8/9

• 9/8

• 9

• 8

Tags

CCSS.8.EE.B.5

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

CCSS.HSF.BF.A.2

Graph has a slope of 1/2 and a y- intercept of 1.  Write the equation in slope - intercept form

• y = 1x+1/2
• y = 1/2x + 1

Tags

CCSS.8.EE.B.5

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

• Yes
• No

Tags

CCSS.8.EE.B.5

Which graph shows a line of best fit for the scatter plot?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.EE.B.5

Match the following vocabulary words with their definitions.

• Line of Best Fit

• When x increases, y decreases.

• Positive Correlation

• The line that best represents data on a scatter plot.

• Negative Correlation

• When x increases, y increases

• No Correlation

• No trend.

  Scattered data does not show a relationship.

• Scatter Plot

• a cluster of data that shows a relationship between two numerical variables

Tags

CCSS.HSF-LE.A.1B