standard deviation python

import numpy as np
values=[1,10,100]
print(np.std(values))
values=[1,10,100,np.nan]
print(np.nanstd(values))

import numpy as np
dataset=[13, 22, 26, 38, 36, 42,49, 50, 77, 81, 98, 110]
print('Standard Deviation:', np.std(dataset))

Standard Deviation: 29.694275542602483

# Python code to demonstrate stdev() function 
  
# importing Statistics module 
import statistics 
  
# creating a simple data - set 
sample = [1, 2, 3, 4, 5] 
  
# Prints standard deviation 
# xbar is set to default value of 1 
print("Standard Deviation of sample is % s " 
                % (statistics.stdev(sample)))