Practice question
Question
Sum of the deviation of the variable values 3, 4, 6, 8, 14 from their mean is:
Explanation
Mean of values 3+4+6+8+14 =35 divided by 5 equals 7. Deviations -4, -3, -1, +1, +7 sum to zero algebraically. This property holds universally for any dataset because positive and negative deviations around arithmetic mean always exactly cancel.
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