Population is any entire collection of people, animals, plants or things from which we may collect data. It is the entire group we are interested in, which we wish to describe or draw conclusions about.

A sample is a group  selected from a larger group (the population). By studying the sample it is hoped to draw valid conclusions about the larger group.


A sample is generally selected for study because the population is too large to study. 
The sample should be representative of the general population. 

 A Biased Sample : 

A sample is biased if individuals or groups from the population are not represented in the sample. Biased Question Definition of Biased Question A Biased Question is a question worded in such a way that a particular answer is favored over others. Also a biased question makes assumptions that may or may not be true. Example(s) of Biased Question Do you want to eat a hamburger or the usual vegetable sandwich? This question is unfair, because it favors hamburger over vegetable sandwich. Is green your favorite color? This question is asked based on an assumption, i.e. the person to whom this question is asked may or may not like green color. Solved Example on Biased Question: Is the following question biased? Say yes or no. ‘Do you watch movies directed by Steven Spielberg’? Choices: A. Yes B. No Correct Answer: B  Solution: Step 1: No, the given question is not biased, because neither does it favor one answer over others nor does it make any assumption. Related Terms:    Unfair Assumption Favor Real-world Connections for Biased Question Usually companies use biased questions in their advertisements or marketing surveys to make people favor their products over others.