# Create the Mean and Standard Deviation of the Data of a Pandas Series

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 : Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course.

My Personal Notes arrow_drop_up

## Recommended Posts:

Article Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.