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Chapter 12: Problem 64

What is the mean and how is it obtained?

Short Answer

Expert verified
The mean, often known as the average, is a measure of central tendency that gives us a 'central' or 'typical' value for a data set. It is calculated by adding up all the values in a data set, then dividing by the number of values in that set.

Step by step solution

01

Understand the Concept of Mean

The mean, often referred to as the 'average', is a measure of central tendency, which gives us a 'central' or 'typical' value for a data set. It's one of the measures used to understand and assess datasets in statistics.
02

Calculation Process

To calculate the mean, you need to add up all the values in a data set, then divide that sum by the number of values in that set. So, if you have n numbers in your data set, add them all up \( x_1 + x_2 + ... + x_n \) and then divide by n. This can be represented by the formula: Mean = \(\frac{{x_1 + x_2 + ... + x_n}}{n}\).

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