how are random samples used 
using simple random sampling allows researchers to make generalizations about a specific population and leave out any bias using statistical techniques inferences and predictions can be made about the population without having to survey or collect data from every individual in that population the bottom linesimple random sampling is the most basic form of analyzing a population allowing every item within it to have the same probability of being selected there are also more complicated sampling methods that attempt to correct for possible shortcomings in the simple method however they don t match the ease of simple random sampling for smaller populations 