Course Content

# Probability Theory Basics

4. Commonly Used Continuous Distributions

5. Covariance and Correlation

Probability Theory Basics

## Mean or Median?

Mean and median are very similar; **both determine the mean value of the sample and allow us to conclude the sample of numbers at all**.
Are there any differences between the terms?
Look at the example of finding the mean and median of the salaries of IT specialists; look at the last with the highest salary.

## Conclusion

The mean value is **susceptible to extremely small or high values** compared to the median. So, if we know that the values in a sequence aren't similar, it is better to use the median. In our example, the mean value is twice higher as the median; the median looks more truly.

Choose lists where the mean and the median value will differ dramatically.

## Select a few correct answers

Everything was clear?