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

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

In the __________ every individual has an equal chance of being selected and the individuals who are selected are just like the ones who are not selected.

___________ is the value which occurs most frequently.

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.

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.

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