Question

the total change in the outdoor temperature over 6 hours was - 21°f. what was the mean change in temperature per hour? enter the correct answer in the box.

Explanation:

Step1: Recall the formula for mean

Mean = Total change / Number of hours.

Step2: Substitute the values

Total change = - 21°F, Number of hours = 6. So, mean = $\frac{-21}{6}$.

Step3: Simplify the fraction

$\frac{-21}{6}=\frac{-7\times3}{2\times3}=-\frac{7}{2}=-3.5$

Answer:

$-3.5$