A study of home heating costs collects data on the size of houses and the monthly cost to heat the houses with natural gas. Here are the data:

A friend tells you that the correlation for the data is r = 0.99984. You conclude from this number that
A) larger houses cost more to heat than smaller houses, and the relationship is almost perfectly straight.
B) smaller houses cost more to heat than larger houses, and the relationship is almost perfectly straight.
C) larger houses cost more to heat than smaller houses, but the relationship is not very strong.
D) smaller houses cost more to heat than larger houses, but the relationship is not very strong.
E) your friend made a mistake, because the value of r is impossible.

Question

A study of home heating costs collects data on the size of houses and the monthly cost to heat the houses with natural gas. Here are the data:

A friend tells you that the correlation for the data is r = 0.99984. You conclude from this number that
A) larger houses cost more to heat than smaller houses, and the relationship is almost perfectly straight. 
B) smaller houses cost more to heat than larger houses, and the relationship is almost perfectly straight. 
C) larger houses cost more to heat than smaller houses, but the relationship is not very strong. 
D) smaller houses cost more to heat than larger houses, but the relationship is not very strong. 
E) your friend made a mistake, because the value of r is impossible.

Quizplus · Accepted Answer

The Answer of A study of home heating costs collects data on the size of houses and the monthly cost to heat the houses with natural gas. Here are the data:

A friend tells you that the correlation for the data is r = 0.99984. You conclude from this number that
A) larger houses cost more to heat than smaller houses, and the relationship is almost perfectly straight. 
B) smaller houses cost more to heat than larger houses, and the relationship is almost perfectly straight. 
C) larger houses cost more to heat than smaller houses, but the relationship is not very strong. 
D) smaller houses cost more to heat than larger houses, but the relationship is not very strong. 
E) your friend made a mistake, because the value of r is impossible.

A Study of Home Heating Costs Collects Data on the Size