The correct answer is simple random sampling. This is
defined as a subset of the statistical population by which each member of the
subset has the a probability of being able to be equally chosen compared to
other kind of sampling.
Answer: 1st blank-New crops such as potatoes and maize, 2nd blank- disease such as small pox
The correct answer is letter A
Correlational is the type of research that seeks to explore relationships that may exist between variables except the cause-effect relationship. The study of relationships between variables is descriptive because there is no manipulation of variables, and prediction is the most frequently established type of relationship.