Exam P (Probability) Random Practice Questions
The free Exam P (Probability) questions that deal with random, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #3
3. In a group of 20 people, 12 are women. If one person is selected at random, what is the probability that the person is a man?
Correct answer: D
Explanation
There are 20 - 12 = 8 men, so the probability is 8/20 = 2/5.
Question #4
4. A box contains 10 batteries, 2 of which are defective. If one battery is chosen at random, what is the probability of selecting a good battery?
Correct answer: D
Explanation
The probability of selecting a good battery is the number of good batteries (8) over the total number of batteries (10): 8/10 = 4/5.
Question #6
6. In a class of 30 students, 12 received an A grade. If a student is chosen at random, what is the probability that they did not receive an A?
Correct answer: D
Explanation
The number of students who did not receive an A is 30 - 12 = 18, so the probability is 18/30 = 3/5.
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