Question

zanlaya has a part - time job at an ice skating rink selling hot cocoa. she decided to plot the number of hot cocoas she sold relative to the days high temperature and then draw the line of best fit. what does the slope of the line represent?
answer
a prediction of number of hot cocoas sold when the temperature is (x^{circ}f).
the rate of change in the expected number of hot cocoas over the days high temperature.
the rate of change in the days high temperature for every additional hot cocoa sold.
a prediction of the temperature when a hot cocoa is sold.

Explanation:

In a linear regression context (line of best fit), the slope represents the rate of change of the dependent variable (number of hot - cocoas sold) with respect to the independent variable (day's high temperature).

Answer:

The rate of change in the expected number of hot cocoas over the day's high temperature.