ASYMMETRY MEASURES

ASYMMETRY MEASURES

1. They are indicators that allow establishing the degree of symmetry or asymmetry that a probability distribution of a random variable presents without having to graphically represent it.

   • We say that there is positive or right skewness if the "tail" to the right of the mean is longer than the one to the left, that is, if there are values ​​that are further apart from the mean to the right
   • We will say that there is negative or left asymmetry if the "tail" to the left of the mean is longer than the one to the right, that is, if there are values ​​further apart from the mean to the left.

2. Fisher asymmetry coefficient

3. Pearson asymmetry coefficient

4. Bowley-Yule asymmetry coefficient

5. Utility

   • They are used to test whether it can be accepted that a statistical distribution follows the normal distribution. This is necessary to perform numerous statistical tests in the theory of statistical inference.

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