Question

If we are collecting sample data for a​ study, the​ _______ that we choose can greatly influence the validity of our conclusions. For​ example, we can use sound statistical methods to analyze data in voluntary response​ samples, but the results are not necessarily valid.

Answer 1

Sampling method

Step-by-step explanation:

Sampling is used in inferential statistics. With the help of inferential statistics the characteristics of a large population is inferred from a sample taken from the population. Sampling is the method by which a sample is chosen from a population.

There are numerous sampling methods. Some of them are

Simple random sampling:

In this sampling method the elements are chosen completely at random. There is no pattern which is followed while choosing the elements.

Systematic sampling

Here, while selecting elements an ordering scheme is followed and are selected at regular intervals from an ordered list.

Stratified sampling

The sample is grouped into categories and the elements are chosen at random from these categories. The categorization is done according to the needs of the survey.