Question

describe what is meant by a random sample.
choose the correct answer below.
a. a random sample is a sample obtained in such a way that every element in the sample has an equal chance of appearing in the population.
b. a random sample is a sample obtained in such a way that the population is split into subgroups and each of these has an equal chance of being selected as
c. a random sample is a sample obtained in such a way that every element in the population has an equal chance of being selected for the sample.
d. a random sample is a sample obtained in such a way that every element in a chosen subset of the population has an equal chance of being selected for the

Explanation:

A random sample is defined as a sample where every element in the population has an equal chance of being selected. Option A has the relationship reversed (should be population to sample, not sample to population). Option B describes a stratified sample (splitting into subgroups). Option D refers to a subset (not the whole population). Option C correctly states that every element in the population has an equal chance of being selected for the sample.

Answer:

C. A random sample is a sample obtained in such a way that every element in the population has an equal chance of being selected for the sample.