SAT Probability and conditional probability Practice Question 13 (Easy)

Question bank / Probability and conditional probability

Math · Problem-Solving and Data AnalysisEasy

In a class of $25$ students, $10$ students wear glasses. If one student is selected at random, what is the probability that the student does NOT wear glasses?

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Answer: 3/5

The number of students who do not wear glasses is $25 - 10 = 15$ . The probability is $\frac{15}{25} = \frac{3}{5}$ .

Answering $\frac{2}{5}$ gives the probability that the student does wear glasses.

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