<Dd> X ~ − X _̄ σ ≤ (3 / 5) 1 / 2 (\ displaystyle (\ frac (\ left (\ tilde (X)) - (\ bar (X)) \ right) (\ sigma)) \ leq (3 / 5) ^ (1 / 2)) </Dd> <P> where ⋅ (\ displaystyle \ cdot) is the absolute value . </P> <P> A similar relation holds between the median and the mode: they lie within 3 ≈ 1.732 standard deviations of each other: </P> <Dl> <Dd> X ~ − m o d e σ ≤ 3 1 / 2 . (\ displaystyle (\ frac (\ left (\ tilde (X)) - \ mathrm (mode) \ right) (\ sigma)) \ leq 3 ^ (1 / 2).) </Dd> </Dl>

The mean is represented by which score in the following frequency distribution