Question

which is the most accurate method of of classifying data ?

Answer 1

Answer:

by making a pie or column chart

Answer 2

Class Interval form of Classification

• Among the form of classification of data class interval form of classification is considered to be the most accurate and widely used form.
• When the volume of the observation is large it is difficult to condense the essence of the data thus, classifying the data in the form of Class interval will be beneficial.
• It is possible to find the arithmetic mean, median and mode very easily and scientifically from the class interval.
• The standard deviation and measure of dispersions could be estimated from the class interval and it could further be used to compare the data.
• However class interval form do have certain defects which include, difficulty in making the choice of right interval, loss of Identity of a particular data, various assumptions made for finding the central tendency, etc.