Stratified sampling: Definition, Allocation rules with advantages and disadvantages

stratified sampling

Stratified sampling is a sampling plan in which we divide the population into several non overlapping strata and select a random sample from each stratum in such a way that units within the strata are homogeneous but between strata they are heterogeneous. Stratum is a group of elements where all the units of elements “within … Read more

Probability sampling with application,advantages and disadvantages

Probability sampling is based on the concept of random selection where each Simple Random Sampling elements have non-zero chance to be occurred as sample. Sampling techniques can be divided into two categories: probability sampling and non-probability sampling. Randomization or chance is the core of probability sampling techniques. Probability sampling.statistical aid For example, if a researcher is … Read more

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