Question

PLEASE HELP WORTH 30 POINTS!!!

Which one of the following would most likely have a negative linear correlation coefficient?
A. length of a driveway compared to number of cars owned
B. distance driven in a car compared to the hours spent driving
C. amount of money spent on baby food as a child ages
D. temperature of a refrigerator compared to the number of items inside of it

Answer 1

amount of money spent on baby food as a child ages

Explanation:

negative linear correlation coefficient means that as one increases, the other decreases

1. the more cars you have, the longer your driveway should be to accommodate more cars

2. as you drive for longer periods of time, you generally cover more distance

3. as a child ages (their age increases), less baby food is spent on them (as they get more "adult" food). thus, as one increases, the other decreases

4. i'm not sure -- the internet says that you want your fridge somewhat full but also not completely full to keep things cold. so there may be a negative/positive correlation depending on the fridge and quantity of items. but it isn't obvious