The state is conducting a survey on the number of students per classroom in middle schools across the state.
21, 22, 22, 22, 23, 24, 24, 26, 26, 27, 38
Total numbers: 11
Mean absolute deviation: 3.09090909091
15, 15, 15, 15, 16, 16, 16, 18, 18, 19, 35
Total numbers: 11
Mean absolute deviation: 3.27272727273
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What is the question?
The difference between the mean number of students per middle school classroom in each school district is ____ students.
The difference between the median number of students per middle school classroom in each school district is ____ students.
Based on the number of students shown for each school district, would the mean or the median provide the most accurate picture of the number of students in a middle school classroom? ____
First step is to subtract to find the difference in the mean and the second step is to divide that number into the MAD. In this case the MAD's are different.
What do you do when the MAD is different?