Answer:
C) Stratified sampling
Explanation:
Stratified sampling: This is one of the probability sampling technique in which the researcher tends to divides a particular population that is taken for the researcher purpose into various groups or strata, and after dividing the population, the researcher randomly finally selects the participants from those groups or strata and being analyzed later on. Further, the group is taken for study is through the random sampling technique.
Advantage:
1. It provides great precision.
2. The study group is small, hence cost-effective.
Hi!
There are C. 100 US Senators.
Answer:
10%
Explanation:
You got 10% of the original investment back
500x10%=50
