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Create the Mean and Standard Deviation of the Data of a Pandas Series
  • Last Updated : 17 Aug, 2020

Standard Deviation is the square root of the Variance. The Standard Deviation denoted by sigma is a measure of the spread of numbers. In pandas, the std() function is used to find the standard Deviation of the series.
The mean can be simply defined as the average of numbers. In pandas, the mean() function is used to find the mean of the series.

Example 1 : Finding the mean and Standard Deviation of a Pandas Series.




# importing the module
import pandas as pd
  
# creating a series
s = pd.Series(data = [5, 9, 8, 5, 7, 8, 1, 2, 3,
                      4, 5, 6, 7, 8, 9, 5, 3])
  
# displaying the series
print(s)

Output :

Finding the mean of the series using the mean() function.




# finding the mean
print(s.mean())

Output :



Finding the standard deviation of the series using the std() function.




# finding the Standard deviation
print(s.std())

Output :

Example 2 : Finding the mean and Standard Deviation of a Pandas DataFrame.




# importing the module
import pandas as pd
  
# creating a dataframe 
df = pd.DataFrame({'ID':[114, 345, 157788, 5626],
                   'Product':['shirt', 'trousers', 'tie', 'belt'],
                   'Color':['White', 'Black', 'Red', 'Brown'],
                   'Discount':[10, 10, 10, 10]})
  
# displaying the DataFrame
print(df)

Output :

Finding the mean of the DataFrame using the mean() function.




# finding the mean
print(df.mean())

Output :

Finding the standard deviation of the DataFrame using the std() function.




# finding the Standard deviation
print(df.std())

Output :

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