In stratified random sampling,
A) randomly selected elements within each of the strata form the sample.
B) all elements within the randomly selected strata form the sample.
C) randomly selected elements within the randomly selected strata form the sample.
D) all elements within each of the strata form the sample.

Question

In stratified random sampling,​
A) ​randomly selected elements within each of the strata form the sample.
B) ​all elements within the randomly selected strata form the sample.
C) ​randomly selected elements within the randomly selected strata form the sample.
D) ​all elements within each of the strata form the sample.

Quizplus · Accepted Answer

In stratified random sampling, the population is divided into homogeneous subgroups called strata. Then a random sample is selected from each stratum. The best choice is A, as it involves randomly selecting elements within each of the strata to form the final sample. This ensures that the sample is representative of the entire population and reduces the sampling error.

In Stratified Random Sampling,​

In Stratified Random Sampling,