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.

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

A graphic method, which estimates the dispersion from shape of a curve is called

A ____________, which includes every element of the population is known as census or the method of complete enumeration.

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

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

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

___________ comprises a group of equi spaced and equi width rectangular bars for each class or category of data.

__________ are usually used when there is paucity of time, money and man power resources and the information is easily available.

Ogive is also called