Determine which pair of variables is uncorrelated.
A)The daily average temperature and the sales of cell phones.
B)The daily average temperature and the sales of overcoats.
C)The daily average temperature and the sales of shorts.
D)The daily average temperature and the sales of gloves.

Question

Quizplus · Accepted Answer

Sales of cell phones are not expected to have a direct relationship with the daily average temperature, so these variables are likely uncorrelated. On the other hand, sales of overcoats and gloves are more likely to be positively correlated with colder temperatures, whereas sales of shorts are more likely to be positively correlated with warmer temperatures.

Determine Which Pair of Variables Is Uncorrelated