14. H1

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14) The following scatterplot shows the amount of natural gas used (MCF=thousand cubic feet) versus another variable, the size of the home measured in the number of square feet:

 

a) Describe the association between the two variables.

 

b) The covariance between these variables is 17,848. What are the units of the covariance?

 

c) The standard deviation of natural gas is 43.41 MCF, and the standard deviation of the size 869.5 sq ft. What is the correlation between the use of natural gas and the size of the home?  

  • 9 years ago
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