Symmetry and Skewness

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      Lesson summary:

      This video explains symmetry and skewness in the context of statistical distributions. Symmetrical distributions can be divided into two equal parts of the same shape, whereas skewed distributions have an asymmetry. Skewness can be described as the direction in which the data points cluster and can be determined using histograms, stem plots, and box plots. The presence of outliers can affect the interpretation of skewness for box plots. In symmetrical distributions, the median and mean are equal, whereas skewed distributions have a median that is different from the mean. The mean is closer to the tail of a skewed distribution.

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