Probability · Mathematics · WB JEE

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WB JEE 2008
A person draws out two balls successively from a bag containing 6 red and 4 white balls. The probability that at least one of them will be red is...
WB JEE 2009
A and B are two independent events such that P(A $$\cup$$ B') = 0.8 and P(A) = 0.3. Then P(B) is
WB JEE 2009
Three numbers are chosen at random from 1 to 20. The probability that they are consecutive is
WB JEE 2010
Two dice are tossed once. The probability of getting an even number at the first die or a a total of 8 is
WB JEE 2010
The probability that at least one of A and B occurs is 0.6. If A and B occur simultaneously with probability 0.3, then P(A') + P(B') is
WB JEE 2011
4 boys and 2 girls occupy seats in a row at random. Then the probability that the two girls occupy seats side by side is
WB JEE 2011
A coin is tossed again and again. If tail appears on first three tosses, then the chance that head appears on fourth toss is
WB JEE 2023
Let A and B are two independent events. The probability that both A and B happen is $${1 \over {12}}$$ and probability that neither A and B happen is ...
WB JEE 2023
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