write the formula for finding "mean deviations for grouping data" and explain the terms
Answers
Step-by-step explanation:
Mean Deviation of Grouped Data
In frequency distribution of continuous type, the class intervals or groups are arranged in such a way that there are no gaps between the classes and each class in the table has its respective frequency. The class intervals are chosen in such a way that they must be mutually exclusive and exhaustive.
To understand the concept of continuous frequency distribution let us take the following example:
The following table represents the age group of employees working in a certain company.
Answer:
Formula. 1. Mean deviation of Mean δˉx=∑f⋅|x-ˉx|n. 2. Mean deviation of Mean δˉx=∑f⋅|x-M|n.
Step-by-step explanation:
Mean deviation formula for group data
Here, you can see the mean deviation formula for group data. Mean deviation - ∑ f | X-X| / ∑ f. Here, X Indicates the mean and is calculated as ∑ f x / ∑ f. X indicates different values of midpoints for class intervals. F indicates the different values of frequency.