Probability

Bihar Board Class 12 · Mathematics · 53 past questions

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1. Q3 2026 Set A2026 Set H2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B

   If $A$ and $B$ are two events such that $P(A)=\frac{1}{4}$, $P(B)=\frac{1}{3}$ and $P(A\cup B)=\frac{1}{2}$…

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2. Q7 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B

   10 coins are tossed. What is the probability that exactly 5 heads appear ?

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3. Q9 2026 Set E

   If $A$ and $B$ are two events such that $P(A)=\frac14$, $P(B)=\frac13$ and $P(A\cup B)=\frac12$ then prove…

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