Question

Discribe the various methods of sampling. How is random sampling better than systematic sampling

Answer 1

Random Sampling- A method of sampling in which each and every item of the universe  has equal chance of being selected in the sample is  called as random sampling. 

In case of systematic sampling, the data is arranged numerically, alphabetically etc. From the arranged items, every nth item is selected as sample item. For ex, every 100 out of 1000 computers are to be selected as a sample. The computers will be numbered and systematically arranged. Now if we selected 100 as a first number, the numbers after that will be like this..200,300,400,500 etc. Thus Systematic sampling is a short cut method of random sampling.​
 

Answer 2

Answer:

the various methods of sampling are random and non-random sampling. Random sampling contains lottery and tables of random number and non random sampling method contains positive, stratified, systematic, quote and convenience sampling.