Question

which of the following is a cluster sample? * a sample of 10 students are selected from math 3 plus class using random number generator a sample of 5 girls and 5 boys are selected from each girls group, and boys group of the class the class is divided into 3 groups, and a group is picked at random, and all students of that group is selected teacher selected the first 10 students who entered the class.

Explanation:

In cluster sampling, the population is divided into clusters and then entire clusters are selected. In the first option, it's simple random sampling. The second is stratified sampling based on gender. The fourth is convenience sampling. The third option where the class is divided into 3 groups, a group is randomly picked and all students of that group are selected fits the definition of cluster sampling.

Answer:

The class is divided into 3 groups, and a group is picked at random, and all students of that group is selected