Systematic Sampling
Description
This method of sampling is at sight quite different from simple random sampling. Suppose that the N units in the population are numbered 1 to N in some order. To select a sample of a units, we take a unit at random from the first k units and every kth unit thereafter. For instance, if k is 15 and if the first unit drawn is number 13, the subsequent the whole sample. This type is called an every kth systematic sample