Probability — Practice Quiz
CBSE · Class 11 · Mathematics
Try a 4-question quiz on Probability for CBSE Class 11 Mathematics: tap an answer to check it and see why. 157 questions in the full chapter test.
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Quick Quiz: Probability
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What is an event in probability theory?
What is the probability of a sure event?
What is the probability of an impossible event?
What is the basic probability axiom about event probabilities?
Sample Questions
What is a simple event?
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An event with only one sample point
A simple event contains exactly one sample point from the sample space.
What does P(A ∪ B) represent?
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Probability of A or B
P(A ∪ B) represents the probability of event A or event B occurring.
What is the formula for probability of equally likely outcomes?
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P(A) = Number of Favorable Outcomes / Total Possible Outcomes
For equally likely outcomes, probability is calculated by dividing favorable outcomes by total possible outcomes.
What does the complementary event (A') represent?
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The event 'not A'
The complementary event A' represents all outcomes in the sample space that are not in event A.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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