How to Find Mean?
To find the mean value, we use the mean formula, which calculates the average of the given data. It is calculated by dividing the sum of all observed data values by the number of observed values. The mean formula is given by
Mean = (Sum of observed values in data)/(Total number of observed values in data)
There are two steps involved in the calculation of the mean:
Step 1: Calculate the sum of observed values in the data.
Step 2: Divide the sum of observed values into the number of observed values in the data.
Based on the type of dataset given, we can find out the mean using different methods. Let’s take a look at the different cases to find the mean:
Case 1: If there are ‘n’ number of items in a list. The data is {x1, x2, x3, … xn}. The Mean is calculated using the formula:
Case 2: Let’s assume there are n number of items in a set i.e., {x1, x2, x3, … xn}, and the frequency of each item is given as {f1, f2, f3, . . ., fn}. Then, the mean is calculated using the formula:
Case 3: When items of the set are given in the form of a range, for example, 1-10, 10-20, etc. To find the mean first we need to calculate the class mark for each class interval and then, the mean is calculated using the given formula:
Mean in Statistics
Mean in Mathematics is the measure of central tendency and is mostly used in Statistics. Mean is the easiest of all the measures. Data is of two types, Grouped data and ungrouped data. The method of finding the mean is also different depending on the type of data. Mean is generally the average of a given set of numbers or data. It is one of the most important measures of the central tendency of distributed data.
In statistics, the mean is the average of a data set. It is calculated by adding all the numbers in the data set and dividing by the number of values in the set. The mean is also known as the average. It is sensitive to skewed data and extreme values. For example, when the data are skewed, it can miss the mark.
In this article, we’ll explore all the things you need to know about What is Mean, Mean Definition, Mean Formula, Mean Examples, and others in detail.
Table of Content
- What is Mean in Statistics?
- Mean Formula
- How to Find Mean?
- Mean of Ungrouped Data
- Types of Mean
- Mean of Grouped Data