Question

7. We want to conduct a survey using professors at a university. We divide them into the categories of instructor, associate professor, and full professor, and take a sample of size 20 from each category.:* Oa. Simple Random Sample Ob. Systematic Oc. Stratified Od. Cluster Oe. Convenience 8. Now we pass by the science department and come across a group of science professors talking in a classroom. We decide to use this group as our study sample.: Oa. Simple Random Sample Ob. Systematic Oc. Stratified Od. Cluster Oe. Convenience

Answer 1

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7.

Each strata of the university' professor is taken and among each strata fixed number of elements are sampled

This is an example of Stratified sampling

Answer: c) Stratified

8.

Here we sample a the very first set of people that we come across.

This is called convinience sampling as we sampled the very first group of science professors who were taking in a classroom .

Answer: e) Convinience