Question

means and mean absolute deviations of rainfall last week and this week last week this week mean 3.5 in. 2.7 in. mean absolute deviation 1.2 in. 0.5 in. which expression compares the difference of the two means to this weeks mean absolute deviation? 0.8/0.7 2.7/0.7 0.8/0.5 2.7/0.5

Explanation:

Step1: Calculate the difference of the two means

The difference of the two means is \(3.5 - 2.7=0.8\) (inches).

Step2: Identify this week's mean absolute deviation

This week's mean absolute deviation is \(0.5\) (inches).

Step3: Form the ratio

The ratio that compares the difference of the two means to this week's mean absolute deviation is \(\frac{0.8}{0.5}\).

Answer:

\(\frac{0.8}{0.5}\) (corresponds to the third option in the multiple - choice list)