Question

Why is random sampling preferred over other methods of sampling?

1) If you select a random sample, you can determine how many people you want in the sample.


2) A random sample is a fair way to select a sample, because each person in the population has an equal chance of getting selected.


3) A random sample is always the easiest way to select a sample from a population.


4) If you use a random sample, the sample mean will always be the same as the population mean.

Answer 1

2.

Explanation:

It's a random sample, so anyone could be sampled. Everyone has the same rate of being sampled, therefore the results are fair and equal.