Answer:
2 raisins
Step-by-step explanation:
The mean is calculated in the usual way: the sum divided by the number of numbers.
mean = (5 +9 +5 +5 +7 +11)/6 = 7
The deviations are the differences from the mean:
deviation = {5, 9, 5, 5, 7, 11} -7 = {-2, 2, -2, -2, 0, 4}
and the absolute deviation is the absolute value of these numbers:
absolute deviation = {2, 2, 2, 2, 0, 4}
The mean absolute deviation (MAD) is the average of these values:
(2 +2 +2 +2 +0 +4)/6 = 2
The mean absolute deviation is 2.
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It is generally convenient to let technology do the computation. A spreadsheet or graphing calculator can do this easily.
