Statistics - Skew (-ed Distribution|Variable)

1 - About

The skew is where is few.

  • A positive skew means that you have few data at the right of the distribution.
  • A negative skew means that you have few data at the left of the distribution.

When distributions are skewed, the most accurate measure of central tendency is the median

When variables are inherently positive or strongly skewed, such as the weight of a person or the price of a share, may be better described by other distributions, such as:

  • the log-normal distribution
  • or the Pareto distribution.

3 - Skewness

A measure of the extent to which a pmf or pdf “leans” to one side of its mean.

data_mining/skewed_distribution.txt · Last modified: 2017/11/17 10:58 by gerardnico