Class 11 Maths Solutions Chapter 32

Table of Contents

In the previous segment, we learnt about classifying data. In this segment of the chapter of

‘Data handling’, we will learn how to find the average.

What is an Average?

??????? = ??? ?? ??????

?????? ?? ??????

The Average is also called the Arithmetic mean or simply, the mean. For example,

Q. Find the mean of 1, 3, 8, 12, and 16.

Solution:

Step 1: Sum of terms = 1 + 3 + 8 + 12 + 16 = 40

Step 2: Number of terms = 5

Step 3: ???? = ??? ?? ??????

?????? ?? ??????

∴ ???? = 40

∴ ???? = 8

Thus, the mean of 1, 3, 8, 12, and 16 is 8.

Also Read:

Summary

Average	An Average is a result you get by adding two or more amounts together and dividing the total by the number of amounts.
Steps to calculate Average	Step 1: Sum of terms