A series of free Statistics Lectures with examples & solutions in videos.

These lectures discuss the mean, mode and median, also known as measures of central tendency.

This is the fourth page of the series of free video lessons, "Statistics Lectures".

There are two types of arithmetic mean: population mean and sample mean.

Central Tendency refers to the measure used to determine the center of a distribution data. It is used to find a single score that is most representative of an entire data set.

Mean will be used for almost all occasions. However, outliers can sometimes interfere with usage of the mean.

An outlier is a value that is very different from the other data in your data set.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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