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?
The correct answer is B. Chi-squared test.
Explanation:
A chi-squared test is used to compare observed frequencies with expected frequencies in categorical data. In the context of a coin flip, the gambler would expect roughly equal numbers of heads and tails. The test determines if the observed frequencies deviate significantly from these expectations, suggesting the coin might be unfair.
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