A lakeside restaurant found the correlation between the daily temperature and the number of
Meals they served to be 0.40. On a day when the temperature is two standard deviations above the
Mean, the number of meals they should plan on serving is _?_ the mean.
A) 0.8 SD above
B) equal to
C) 0.4 SD above
D) 2.0 SD above
E) 0.16 SD above

Question

Quizplus · Accepted Answer

The correlation between temperature and meals served is 0.40, which means that for every one standard deviation increase in temperature, the number of meals served increases by 0.4 standard deviations. On a day when the temperature is two standard deviations above the mean, the number of meals served should be 0.8 standard deviations above the mean (0.4 * 2 = 0.8).

A Lakeside Restaurant Found the Correlation Between the Daily Temperature