Question

In stratified random sampling ,_____________.

• A. sampling is done at different phases.
• B. the population is first divided into a number of strata.
• C. every item of population will be treated equally.
• D. all of the above.

Answer 1

The correct option is B the population is first divided into a number of strata.

In stratified random sampling, population is firstly divided into small groups on the basis of some common characteristics and these small groups are known as Stratas. Stratas can be made on the basis of age, sex, job profiles etc.