Causation & Correlation Coefficient

Match the following

• Negative, Linear Correlation

• 
• Positive, Linear Correlation

• 
• No Correlation

• 

What is most likely the correlation coefficient for this data set?

• r = -0.20

• r = -0.70

• r = 0.83

• r = 1.00

Order the scatterplots from STRONGEST to WEAKEST correlation coefficients

• 
• 
• 
• 

Order the correlation coefficients from STRONGEST linear relationship to WEAKEST

• 0.45

• 0.80

• -0.50

• -0.89

Match each description with the best possible correlation.

• Positive Correlation

• The temperature outside and ice cream sales

• No Correlation

• Total time spent playing video games and the number of cars you own

• Negative Correlation

• The number of days absent from school and your final grade in a class

What is the correlation coefficient?

• 0.9853

• 0.9607

• 0.9127

• 0.9555

The correlation coefficient is

• 0.6992

• -0.8362

• -1.82143

• 96.0714

Which of these scenarios does NOT imply causation?

• the more the rooster crows, the more often it rains

• the more miles driven, the more gasoline needed

• the faster the pace of the runner, the more quickly the runner finishes

• the higher the hourly wage, the greater the income (money)

Which of the following is the WEAKEST negative correlation?

• -0.73

• - 0.34

• - 0.92

• - 0.57

Causation or Not Causation:

The more hours I work, the more money I earn.

• Causation

• Not Causation