Question

1. Explain the difference between a census and a sample.

Important note: I need two references in APA style for this question. Thank you

Answer 1

Census method is that process of the statistical list where all members of the population are analysed. A population relates to the set of all observations under concern.For example, if you want to carry out a survey to find out student’s feedback about the facilities of your school,all the students of your school would form a part of the ‘population’ for your study.But it is not always practical to collect information from all the units of the population.It is a time-consuming and costly method. Thus, an easy way out would be to collect information from some representative group from the population and then make observations accordingly.

A sampling method is a process for choosing sample members from a population. 3 common sampling methods are simple random sampling ,stratified sampling,cluster sampling.
The first most important step in selecting a sample is to determine the population. Once the population is identified, a sample must be selected. A good sample is one which is:
.Small in size.
It provides adequate information about the whole population.
It takes less time to collect and is less costly.