Probability

Bihar Board Class 12 · Mathematics · 53 past questions

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1. Q10 2025

   Let $E$ be an event of a sample space $S$ of an experiment, then $P\left(\frac{S}{E}\right) =$

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2. Q11 2025

   If $P(A) = \frac{5}{11}$, $P(B) = \frac{7}{11}$ and $P(A \cap B) = \frac{3}{11}$ then…

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3. Q12 2025

   A family has two children. If it is known that at least one child is a boy, then the probability that both…

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4. Q14 2025

   If $E$ and $F$ are independent events then $P(E' \cap F') =$

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5. Q18 2025 Set A2025 Set E

   If odds in favour of event $E$ be $a : b$, then $P(E) =$

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6. Q19 2025 Set A2025 Set E

   The chance of getting a doublet in a throw of 2 dice is

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7. Q20 2025 Set A2025 Set E

   Addition theorem of probability is

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8. Q21 2025 Set A2025 Set E

   Multiplication theorem of probability is

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