Calculation of Frequency Distribution

Decile and Quartile are calculated through Frequency Distribution. Calculation of Frequency Distribution is used when there are great volume of gross data. These data are distributed in classes and quantity of data of each class is established.

To Calculate Frequency Distribution you need formulas above:

Number of Classes:

K = 1 + 3.3 log

Where:

K = Number of Classes

N = Number of elements of sample

Sample Scope:

R = Max - Min

Where:

R = Sample Scope

Max = Higher Salary of Sample

Min = Minimum Salary of Sample

Classes Scope:

Where:

H = Classes Scope

R = Sample Scope

K = Number of Classes