Find a) the mean, 
, of the data, b) the deviation from the mean for each data item, and c) the sum of the deviations.8.4, 6.9, 5.3, 7.2
A. a) mean: 6.95, b) deviations: 1.45, -0.05, -1.65, 0.25, c) sum: 0
B. a) mean: 6.95, b) deviations: 1.25, -0.15, -1.65, 0.25, c) sum: -0.3
C. a) mean: 7.15, b) deviations: 1.45, -0.25, -1.35, 0.05, c) sum: -0.1
D. a) mean: 7.15, b) deviations: 1.25, -0.25, -1.85, 0.05, c) sum: 0
Answer: A
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