If you need to calculate variance
in Python, then you can do the following.
Option 1 – Using variance()
from Statistics
module
1
2
3
4
5
6
7

import statistics
list = [12,14,10,6,23,31]
print("List : " + str(list))
var = statistics.variance(list)
print("Variance: " + str(var))

Option 2 – Using var()
from numpy
module
1
2
3
4
5
6

import numpy as np
arr = [12,43,24,17,32]
print("Array : ", arr)
print("Variance: ", np.var(arr))

Option 3 – Using sum()
and List Comprehensions
1
2
3
4

list = [12,43,24,17,32]
average = sum(list) / len(list)
var = sum((xaverage)**2 for x in list) / len(list)
print(var)
