Answer:
(A) Sampling method
The sampling method is the one in which only some of the representative items of the population are selected and the data are collected from these. Instead of collecting information for and from all the units of population, we select a sample, i.e., only a few items of the population.
Answer:
4. All of these
Explanation:
Anxiety can cause a ton of symptoms and all of these fall under thoses
The answer is 322,320... Closest to that is D
Explanation:
Before getting sick people often do not expect that they will catch some disease or infection. After they do, they have to take one or several doses of a vaccine and it is depending on the disease that they are having.
They will recover after the vaccine but they will also develop natural immunity in them which means that in that case, they will catcht the same or similar disease so easily again.