Standard Deviation and VarianceUnsolved
Prob. and Stats
Problem reported in interviews at
The Standard Deviation is a measure of how spread out numbers are. In statistical analysis, standard deviation plays an important role. It can be computed using below given formula.
Variance can be defined as the average of the squared differences from the Mean. It can be calculated using below given formula.
Our function will take 1D NumPy Array and computes standard deviation and variance using array given in input.
This function will return a list having length 2 which contains Standard Deviation and Variance in their corresponding place.
arr: [array([8, 8, 3, 7, 7, 0, 4])]
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numpy has been already imported as np (import numpy as np)