CompTIA Data+ (DA0-001) — Question 215
A gambler thinks that a coin is fair and is equally likely to turn up heads or tails when the coin is flipped. Which of the following tests should the gambler use to test this hypothesis?
Answer options
- A. t-test
- B. Chi-squared test
- C. Rank sum test
- D. Ratio test
Correct answer: B
Explanation
The Chi-squared test is the appropriate choice for testing the hypothesis of a fair coin because it evaluates the goodness of fit between observed and expected frequencies. The t-test is used for comparing means, the rank sum test is for ordinal data, and the ratio test is not applicable in this context.