Question

What do you mean by loss of information in organized data?

Answer 1

When we group data in a continuous series as shown below, we get to know only the fact that 4 students have marks more than equal to or more than 0 and less than 10 but we do not know the exact figures.

$\begin{array}{cc}\text{Marks}& \text{Frequency}\\ 0-10& 4\\ 10-20& 7\\ 20-30& 4\\ 30-40& 3\\ 40-50& 2\end{array}$

Suppose all 4 had 1 mark, they will be in class 0-10 and even when all 4 have 9 marks, they will be in class 0-10. This is called loss of information in organized data.