A random sample of records of electricity usage of homes gives the amount of electricity used in July and size (in square feet)of 135 homes.A regression to predict the amount of electricity used (in kilowatt-hours)from size was completed.The residuals plot indicated that a linear model is appropriate.What are the variables and units in this regression?
A)Amount of electricity used (in kilowatt-hours)is y and size (in square feet)is x.
B)Amount of electricity used (in kilowatt-hours)is y and number of homes is x.
C)Size (in square feet)is y and amount of electricity used (in kilowatt-hours)is x.
D)Size (in square feet)is y and number of homes is x.
E)Number of homes is y and amount of electricity used (in kilowatt-hours)is x.

Question

Quizplus · Accepted Answer

The amount of electricity used (in kilowatt-hours) is the response variable, denoted by y, and the predictor variable is size (in square feet), denoted by x.

A Random Sample of Records of Electricity Usage of Homes