Linear Which Correlation Best Describes The Strength Of The Linear Association

Which scatterplot suggests a linear association?

• 
• 
• 
• 

Tags

CCSS.8.F.A.3

Correlation coefficient is the statistic that measures the strength and direction of a linear association between two quantitative variables.

• True

• False

The correlation coefficient is a number "r" such that: 

• -1<r<1

• -1>r>1

• -1≤r≤1

• -1≥r≤1

What letter do we use to represent correlation coefficient?

• c

• r

• p

• h

Which with is the line of best fit?

• Black

• Orange

• Red

• Blue

Tags

CCSS.8.EE.B.5

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

Tags

CCSS.8.EE.C.8C

What is the correlation coefficient for this data?

• 9.39

• 72.98

• 0.50

• 0.71

Which best describes the table of data?

• Weak Negative Correlation

• Strong Negative Correlation

• Weak Positive Correlation

• Strong Positive Correlation

Create an equation that best describes the relationship shown in the table.

• y = 0.97x + 4

• y = 0.97x + 0.95

• y = 22.3x + 4

• y = 4x + 22.3

Tags

CCSS.7.EE.B.4A