Lesson 24 of 40Article14 min

Statistics & Math Module Reference

statistics.mean, median, mode, stdev work on Python lists — no NumPy required.

Statistics module

statistics.mean, median, mode, stdev work on Python lists — no NumPy required.

Good for quick summaries in scripts and homework.

Real-life example: statistics.mean is the class average — one number summarizing everyone's test.

Basic stats

import statistics

scores = [80, 85, 90, 92, 88]
print(statistics.mean(scores))
print(statistics.median(scores))

math.sqrt, pow, ceil, floor, factorial, gcd, sin, cos, log, pi, e.

For vector math use NumPy; math is for scalar operations.

Real-life example: math.factorial is counting arrangements — how many ways to order 5 books on a shelf.

Math highlights

import math

print(math.sqrt(49), math.factorial(5))
print(math.gcd(48, 18))
print(round(math.sin(math.pi / 2), 2))