Python program to calculate standard deviation; Through this tutorial, i am going to show you how to find or calculate standard deviation in python.
In this tutorial, i will write a program to compute standard deviation in python.
Python Program to Find Standard Deviation
See the following python programs to standard deviation; as shown below:
- Write a program to calculate standard deviation in python.
- How to find standard deviation in python without inbuilt function.
Write a program to calculate standard deviation in python
# import statistics library import statistics print(statistics.stdev([1,2,3,4,5,5,5,6,7,8])) print(statistics.stdev([40,45,35,10,15,18,12,16], 45))
stdev() function in python is the Standard statistics Library of Python Programming Language. The use of this function is to calculate the standard deviation of given continuous numeric data.
How to find standard deviation in python without inbuilt function
#define a function, to calculate standard deviation def stdv(X): mean = sum(X)/len(X) tot = 0.0 for x in X: tot = tot + (x - mean)**2 return (tot/len(X))**0.5 # call function with following data set x = [1, 2, 3, 4, 5, 6, 7, 8] print("Standard Deviation is: ", stdv(x)) y = [1, 2, 3, -4, -5, -6, -7, -8] print("Standard Deviation is: ", stdv(y)) z = [10, -20, 30, -40, 50, 60, -70, 80] print("Standard Deviation is: ", stdv(z))
Standard Deviation is: 2.29128784747792 Standard Deviation is: 4.06201920231798 Standard Deviation is: 48.925964476952316
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