Summary  
This chapter explains how to calculate the arithmetic mean of a collection of numbers by summing all values and dividing by their count.

General domain of usage  
Statistical data analysis

The study of statistical measures starts with the concept of the **mean value**. To calculate the **mean**, add all the numbers in a dataset and divide the sum by the total number of values.

The illustration below shows how to calculate the **mean** salary of a group of people:


Learn core statistical concepts used in data analysis with Python. The course covers descriptive statistics, including mean, median, mode, variance, and standard deviation, as well as sampling, probability distributions, the Central Limit Theorem, and outlier detection.

Mean Value

Mean Value