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Problem-Solving and Data Analysis
/ Probability and conditional probability
Difficulty: Easy
Each face of a fair -sided die is labeled with a number from through , with a different number appearing on each face. If the die is rolled one time, what is the probability of rolling a ?
Explanation
Choice A is correct. The total number of possible outcomes for rolling a fair -sided die is . The number of possible outcomes for rolling a is . The probability of rolling a is the number of possible outcomes for rolling a divided by the total number of possible outcomes, or .
Choice B is incorrect. This is the probability of rolling a number no greater than .
Choice C is incorrect. This is the probability of rolling a number greater than .
Choice D is incorrect. This is the probability of rolling a number other than .