Linear Correlations

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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

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

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

Tags

CCSS.HSF-LE.A.1B

Which value of r represents data with a strong negative linear correlation between two variables?

• -0.86

• -0.50

• 0.89

• 0.07

Tags

CCSS.HSF-LE.A.1B

Find the correlation coefficient (3 sig fgis)

(a)  

• r=.99

• r=.98

• r=20.7

• r=-35

A person travels by car.  They record their miles driven in a data table.  State the correlation coefficient, round to the nearest hundredth, if necessary.

Mathematical Equivalence

ON

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• 0.07 weak

• -0.26 weak

• -0.26 moderate

• 0.07 strong

Determine the Correlation Coefficient to the nearest hundredth and describe it in your own words.