Answer to Question #255992 in Statistics and Probability for robs

Question

You are inclined to study on the problems encountered by 5 selected government colleges particularly on the performance of new teachers. The respondents of the study are the new teachers which relatively numbering for about 600. How would you choose the samples?

Answer 1

A simple random sample is a subset of a statistical population in which each subset member has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group.

A simple random sample is often mentioned in elementary statistics classes, but it’s one of the least used techniques. In theory, it’s easy to understand. However, in practice, it’s tough to perform.

Technically, a simple random sample is a set of n objects in a population of N objects where all possible samples are equally likely to happen. Here’s a basic example of how to get a simple random sample: put 100 government colleges (this is the population N). Select 10 government colleges from the bowl without looking (this is your sample n). Note that it’s important not to look as you could (unknowingly) bias the sample. The method can work fine for smaller populations, in reality you’ll be dealing with much larger populations.