CompTIA Data+ (DA0-001) — Question 161

A data analyst needs to survey customers about their preferences for various types of soda. Which of the following sampling methods should the analyst use to collect the survey data?

Answer options

• A. Simple random sampling
• B. Parameterization sampling
• C. Index sampling
• D. Single-stage sampling

Correct answer: A

Explanation

The correct method is Simple random sampling, as it allows each customer an equal chance of being selected, ensuring a representative sample. The other methods, such as Parameterization sampling and Index sampling, do not provide the same level of randomness and may introduce bias, while Single-stage sampling does not specifically refer to a sampling method commonly used in this context.