Answer :
The sampling strategy used in this problem is an example of:
- Failing to include diverse perspectives in the collection.
- Failing to choose a large enough sample size.
What is sampling?
Sampling is when a subset of an entire population is studied, to verify whether characteristics of the sample can be expanded to the entire population.
The sample has to be representative of the population, that is, large enough, hence it should contain all the subsets of the population.;
In the context of this problem, the chain sees about 500 customers a week and they receive the responses from 50 of them. This is a not large enough sample size, hence it could cause biased results, meaning that the perspective of the entire population will not be considered.
In the context of this problem, the survey are anonymous, and the objective of a survey is generally not to reward the participants, hence the last two options are false.
What is the missing information?
The options are given as follows:
- Failing to include diverse perspectives in the collection.
- Failing to choose a large enough sample size.
- Failing to reward customers for participating in the survey.
- Failing to collect data anonymously.
More can be learned about sampling at https://brainly.com/question/9910540
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