Question

What is frequency distribution? How does it differ from frequency array?

Answer 1

When observed data are grouped according to class intervals and frequencies of various classes are shown against them, then this presentation of data is called frequency distribution.

Main differences are :

$\begin{array}{cc}\text{Frequency Distribution}& \text{Frequency Array}\\ \text{(i) It shows how the different values of}& \text{(i) It shows different values of the variables}\\ \text{a variable are distributed in different}& \text{alongwith their corresponding frequencies}\\ \text{classes alongwith their corresponding}& \\ \text{class frequencies}& \\ \text{(ii) It is a technique of classifying data}& \text{(ii) It is a technique of classifying the data for}\\ \text{for a continuous variable}& \text{a discrete variable}\end{array}$