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Python has a built - in module that you can use to calculate mathematical statistics of numeric data.The statistics module was new in Python 3.4.
Description statistics.harmonic_mean() Calculates the harmonic mean (central location) of the given data statistics.mean() Calculates the mean (average) of the given data statistics.median() Calculates the median (middle value) of the given data statistics.median_grouped() Calculates the median of grouped continuous data statistics.median_high() Calculates the high median of the given data statistics.median_low() Calculates the low median of the given data statistics.mode() Calculates the mode (central tendency) of the given numeric or nominal data statistics.pstdev() Calculates the standard deviation from an entire population statistics.stdev() Calculates the standard deviation from a sample of data statistics.pvariance() Calculates the variance of an entire population statistics.variance() Calculates the variance from a sample of data