In a group of 120 students, 72 succeeded in the first exam, 48 in the second, and 36 managed to pass both. What is the probability that a randomly chosen student did not pass either of the two exams?

Correct answer marked below

A

1/6

B

1/8

C

5/8

3/10

Correct

E

8/10

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J

JasonOct 14, 2024

Thank you very much!

P

PratitiJan 31, 2025

Thank you very much!

What this question tests

Your ability to compute probabilities of single and compound events, including 'at least one' questions.

Forgetting to use the complement for 'at least one', or treating dependent events as independent.

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