Exam Assure Daily Practice Quiz-19

...............data are those which are already collected by someone for some purpose and are available for the present study.

A measure which divides an array into four equal parts is known as,

The value which occurs the greatest number of frequency in a series is

Standard deviation is the most important measure of dispersion and is widely used in many statistical formulae.

Standard deviation is also called

“It is the measure of the average relationship between two or more variables in terms of the original units of the data".

What is it?