Comparison of common averages of values (1, 2, 2, 3, 4, 7, 9) Type Description Example Result Arithmetic mean Sum of values of a data set divided by number of values: x  ̄ = 1 n ∑ i = 1 n x i (\ displaystyle \ scriptstyle (\ bar (x)) = (\ frac (1) (n)) \ sum _ (i = 1) ^ (n) x_ (i)) (1 + 2 + 2 + 3 + 4 + 7 + 9) / 7 Median Middle value separating the greater and lesser halves of a data set 1, 2, 2, 3, 4, 7, 9 Mode Most frequent value in a data set 1, 2, 2, 3, 4, 7, 9
what is the value that occurs most frequently in a distribution
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