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The numbers of pages read in books by fourth graders and by seventh graders are shown below:

Fourth Grade: 87, 95, 76, 148, 104
Seventh Grade: 183, 187, 204, 215, 196

Use the mean absolute deviation to compare the variability in the mean number of pages read by students in each grade.

Thank you in advance!

User VIAGC
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Fourth grade average:

87 + 95 + 76 + 148 + 104 = 510 / 5 = 102

Seventh grade average:

183 + 187 + 204 + 215 + 196 = 985 / 5 = 197

User Douglas Porto
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