Measure of Central Tendency

In this class, We discuss the Measure of Central Tendency.

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It is our first class in probability and statistics. We go step by step to complete the course.

First, the reader should understand the distribution of data.

Distribution: A distribution collects data and arranges them in sequential order.

We will understand better with an example.

Heights of students in a class

The below diagram shows the distribution of heights of students in a class.

We measured the heights in feet and inches.

One student is of a height of 5.5 inches.

One student is of a height of 5.6 inches.

The above diagram shows the distribution.

With the distribution plot, we can pull most of the information.

What are the minimum and maximum height of students?

Where are most of the student’s heights?

The above diagram shows most of the students are around 5.8 and 5.9 in height.

The measure of central tendency:

The central tendency is a measure that represents the centre point of the distribution.

The above distribution central tendency is around 5.8.

Half the data is on the left of the central tendency measure and half on the right by the central tendency measure.

Important: the central measure gives where most of the data is around.

Different ways to find the measure of central tendency

1) Mean

2) Median

3) Mode

4) Geometric Mean

5) Harmonic Mean