Probability

Bihar Board Class 12 · Mathematics · 53 past questions

15 of 53 · show all

1. Q1 2026 Set A2026 Set H2026 Set E2026 Set F2026 Set J2026 Set B

   $1 - P(A' \cap B') =$

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2. Q6 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B

   If the odds against the event $A$ is $3 : 7$ then $P(A) =$

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3. Q8 2026 Set C2026 Set D2021 Set J2021 Set I

   $1-P(A'\cap B') =$

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4. Q18 2025 Set A2025 Set E

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

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5. Q20 2025 Set A2025 Set E

   Addition theorem of probability is

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6. Q26 2024 Set D2024 Set J

   $P(A)=\frac{6}{11},\ P(B)=\frac{5}{11},\ P(A\cup B)=\frac{7}{11}\Rightarrow P(A\cap B)=$

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7. Q33 20232023 Set E

   $P(E)=\dfrac{3}{7}, P(F)=\dfrac{5}{7}, P(E\cup F)=\dfrac{6}{7}\Rightarrow P(E\cap F)=$

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8. Q37 2021 Set J2021 Set I

   $P(A)+P(A')=$

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9. Q38 2019 Set F

   If $P(A)=\frac{3}{8}$, $P(B)=\frac{1}{2}$, $P(A\cap B)=\frac{1}{4}$, then $P(A\cup B)=?$

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10. Q39 2019 Set F

    $P(A \cup B) = ?$

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11. Q40 2019 Set F

    $P(E)=\ ?$

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12. Q41 2019 Set F

    $P(A) + P(A') = ?$

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13. Q48 2017

    If S be the sample space and E be the event then $P(E)=...........$

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14. Q50 2017

    If $P(A)=\frac{3}{8}$, $P(B)=\frac{1}{2}$ and $P(A\cap B)=\frac{1}{4}$ then $P(A\cup B)=$ ...........

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15. Q53 2015

    If $P(A)=\frac{3}{8}, P(B)=\frac{1}{2}, P(A\cap B)=\frac{1}{4}$ =

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