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← Bihar Board Class 12 PYQ
Probability
Bihar Board Class 12 · Mathematics · 53 past questions
Topic
Basic probability and addition theorem
1
Conditional probability
1
Independent events and multiplication theorem
1
Word problems on truth-telling, survival and bags
1
Equally likely outcomes with coins, dice and cards
0
Random variables and probability distributions
0
Level
Easy
4
Moderate
0
Tough
0
Year
2026
9
2025
13
2024
8
2023
4
2021
4
2019
4
2018
5
2017
5
2016
2
2015
3
4 of 53 ·
show all
Q31
2023
2023 Set E
If A and B are independent events, P(A) = 0.3 and P(B) = 0.4 then P(A∩B) =
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Q32
2023
2023 Set E
$P(A)=\dfrac{7}{11}, P(B)=\dfrac{9}{11}, P(A\cap B)=\dfrac{4}{11}\Rightarrow P(A/B)=$
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Q33
2023
2023 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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Q34
2023 Set E
A bag contains 4 red and 5 white balls and another bag contains 5 black and 6 green balls. A ball is taken…
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