Question

Select the correct answer.A weather historian gathered data about the average temperature and total snowfall in her city during the month of January in recent years. The scatter plot shows the data she gathered and the line of best fit.

Answer 1

The following steps would guide us to get the inches of snowfall during the month of January when the average temperature is 2 degrees Fahrenheit

Step 1: Write out the given equation of the line of best fit

$y=-0.368x+18.483$

Where y represents the snowfall during the month of January, x represents the average temperature

Step 2: Substitute x = 2 into the equation of the line of best fit

The value of y when x = 2 is calculated below

$\begin{gathered} y=-0.368x+18.483 \\ y=-0.368(2)+18.483 \\ y=-0.736+18.483 \\ y=17.747 \\ y\approx17.7inches\text{ of snow} \end{gathered}$

Hence, the inches of snowfall during the month of January when the average temperature is 2⁰F is approximately 17.7, OPTION A