Question: What is Sample ?


In general, a sample is a selection from the population being studied.

When a survey is being carried out, for example to see who might win an election, a selected subset of people are questioned about their voting intentions, and conclusions are then made about the whole population. The subset of people questioned is a statistical sample. The process of taking samples in this way is called sampling.

A small group of things that are taken from a larger group of things and studied so that more can be said about the nature of the larger group. For example,

if four pupils are taken from each class in your school and their heights are measured, the average height of all the pupils in your school can be estimated.

Inspectors in a factory will carefully examine a sample of the goods being produced to decide whether its quality comes up to scratch.