Advantages of multistage sampling?

A multistage amplifier is composed of several single stage amplifiers.

the combinitoin of any random samples is called multistage samplinag.

it is the expensive form of cluster samling. when each elements in cluster are expensive then we use multistage sampling.

Multistage rockets have two or more stages. Typically, rockets will have only two to three.

Multistage rockets have two or more stages. Typically, rockets will have only two to three.