SKEW.P measures thesymmetryof a distribution.

A positive skew result indicates a distribution that tails off to the right.

A negative skew result indicates a distribution that tails off to the left.

Excel SKEW function

In a perfectly symmetrical distribution, the skew is zero.

The count of values in each group are the inverse of each other.

There are four 1’s in group A, four 5’s in group B, etc.

A positive result indicates a distribution that tails off to the right.

A negative result indicates a distribution that tails off to the left.