Variance and Standard Deviation

In this module, you will learn how to quantify the spread of the dataset by calculating the variance and standard deviation.

Key Concepts

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Calculating Variance in Python

Interpretation of Variance

Variance

Standard Deviation

Standard Deviation Units

Calculating Standard Deviation in Python

import numpy as np
values = np.array([1,3,4,2,6,3,4,5])

# calculate variance of values
variance = np.var(values)

In Python, we can calculate the variance of an array using the NumPy var() function.

Variance

Lesson 1 of 2

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