Question

The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are shown below. Means and Mean Absolute Deviations of Rainfall Last Week and This Week Last Week This Week Mean 19.7 cm 19.3 cm Mean Absolute Deviation 4.6 cm 5.2 cm The difference in the mean rainfall is approximately what percent of the mean absolute deviation of the data sets? 8% 23% 27% 67%

Answer 1

Answer:

A. 8%

Step-by-step explanation:

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Answer 2

The difference in the mean rainfall is given by 19.7 - 19.3 = 0.5

The difference in the mean rainfall is approximately 0.5/4.6 = 0.087 = 8.7 percent of the mean absolute deviation for last week and is 0.5/5.2 = 0.077 = 7.7 percent of the mean absolute deviation for this week.

Therefore, the difference in the mean rainfall is approximately what percent of the mean absolute deviation 8% of the mean absolute deviation of the data sets.