Free Practice Question
PS · Problem Solving
555-605
Probability
If the likelihood of event X occurring is 0.8, and the likelihood of event Y occurring is 0.5, which of the following statements is accurate?
Answer Choices
Correct answer marked belowA
X and Y cannot occur at the same time
X and Y can occur simultaneously
Correct
C
X and Y are opposites
D
It is guaranteed that either event X or event Y will occur
E
The opposite of event X cannot occur at the same time as event Y
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Explanation
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Official Explanation
Official
When we say two events are mutually exclusive, it means they cannot happen at the same time. Since events X…
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Comments
2
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S
ShishirJul 4, 2024
taking my GMAT next month, this helps!
J
JakobMar 30, 2025
good question
What this question tests
What it tests
Your ability to compute probabilities of single and compound events, including 'at least one' questions.
Common trap
Forgetting to use the complement for 'at least one', or treating dependent events as independent.
Details
Difficulty
555-605
Type
PS
Category