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. Q13 2025

   If $P(A) = \dfrac{6}{11}$, $P(B) = \dfrac{5}{11}$ and $P(A \cup B) = \dfrac{7}{11}$ then…

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5. Q15 2025

   If $A$ and $B$ are two events such that $P(A) = \dfrac{1}{2}, P(B) = \dfrac{1}{3}$ and…

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