Graphing Associations

Solve the equation by graphing

2(4x-3) - 8 = 4 + 2x

• 0

• 3

• 4

• -6

Solve the equation by graphing

5n + 34 = -2(1 - 7n)

• 0

• 3

• 4

• -6

Students recorded the total number of pages and chapters in each of several books on the scatterplot. Based on the scatterplot, which is the best prediction of the total number of pages in a book with 4 chapters?

• 150 pages

• 140 pages

• 90 pages

• 120 pages

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

The scatter plot shows the number coffee shops in different cities and the number of violent crimes. Which of the following is NOT true?

• A) As the number of coffee shops increase, violent crimes appears to increase.

• B) The line of best fit (regression line) shows a positive correlation

• C) The data has a positive correlation coefficient

• D) An increase in coffee shops causes an increase in violent crimes

Rank these scatter plots according to the intensity of the correlation represented, from weakest to strongest.

• 1, 2, 3, 4

• 2, 4, 3, 1

• 4, 3, 2, 1

• 1, 3, 4, 2

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

Tags

CCSS.8.F.A.3

What type of association (correlation) does this graph have?

• positive

• negative

• none

• all of the above

What type of association does this scatter plot show?

• positive linear association

• negative linear association

• no association

• nonlinear association

Tags

CCSS.HSF-LE.A.1B

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

Tags

CCSS.HSF-LE.A.1B