📊 Statistics Module

Last Updated: 24th August 2025

The statistics module provides a set of functions for performing statistical calculations. It includes functions for basic statistics, such as mean, median, mode, standard deviation, and more.

List of Statistics Functions:

mean(data): Returns the arithmetic mean(Average) of the data.

import statistics as stats
data = [10, 20, 30, 40, 50]
print(stats.mean(data))   # 30

median(data): Returns the median value of the data.

import statistics as stats
print(stats.median([10, 20, 30]))       # 20
print(stats.median([10, 20, 30, 40]))   # (20+30)/2 = 25

median_low(data)/median_high(data): Returns the lower/upper median value of the data.

import statistics as stats
print(stats.median_low([10, 20, 30, 40]))   # 20
print(stats.median_high([10, 20, 30, 40]))  # 30

mode(data): Returns the most frequently occurring value in the data.

import statistics as stats
print(stats.mode([1, 2, 2, 3, 3, 4]))   # 2

variance(data): Returns the variance of the data.

import statistics as stats
print(stats.variance([1, 2, 3, 4, 5]))   # 2.5

stdev(data): Returns the standard deviation of the data.

import statistics as stats
print(stats.stdev([1, 2, 3, 4, 5]))   # 1.581114

quartiles(data): Returns the quartiles of the data.

import statistics as stats
print(stats.quantiles([1,2,3,4,5,6,7,8,9], n=4))
# [2.5, 5.0, 7.5]  (quartiles)

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