SKEW


Returns a measure of how skewed a distribution is.

Syntax:

SKEW(number1, number2, ... number30)

number1 to number30 are up to 30 numbers or ranges/arrays containing numbers.
SKEW returns a measure of how skewed a distribution is, relative to a normal distribution - that is, how asymmetric it is. Positive values indicate a distribution with a tail inclining to the positive side, and negative values a distribution with a tail inclining to the negative side. SKEW calculates:


for the n >= 3 numbers having a standard deviation s > 0.

Example:

SKEW(A1:A30)
returns a measure of how skewed the distribution of numbers in A1:A30 is.
SKEW(1, 3, 4, 5, 9)
returns approximately 0.885, indicating that the tail of this (too small to be useful) distribution inclines to the positive.
SKEW(1, 3, 4, 5, 7)
returns 0; the distribution is symmetric.






 
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