__________ does not mean causation.  It only means co variation.

___________ are used for comparing two or more sets of data.

A ___________ is a useful technique for visually examining the form of relationship, without calculating any numerical value.

The ___________ is the middle element when the data set is arranged in order of the magnitude.

In ___________ the data are classified with reference to geographical locations such as countries states cities districts etc.

Ogive is also called

The ___________ is the difference between the largest and the smallest values of variable.

___________, the most widely used measure of dispersion, is based on all values.

Ogives can be helpful in locating graphically the

__________ shows how different values of a variable are distributed in different classes along with their corresponding class frequencies.