What is step-deviation method explain with an example?
Step 1: Mean
Mean is an arithmetic measure of a given data set that can be determined by dividing the sum of all data points by the number of data points in a given data set. In a data set, the average point of all the data points we have in the set.
Depending on the size of the data, there are three ways to find the meaning of data collected, such as
Step-deviation Method
If the data values are large, a step deviation method is used to obtain the definition. The formula is provided by:
Mean
Here,
Total number of observations
class mark
Step 2: Example
Find the mean of the following data set.
Therefore, the mean of the given data set is .