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The probability that a student selected at random from class will pass in Mathematics is 4/5, and the probability that he/she passes in Mathematics and Computer Science is ½. What is the probability that he/she will pass in Computer Science if it is known that he/she has passed in Mathematics?

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To solve the problem, we need to find the conditional probability that a student passes in Computer Science given that they have passed in Mathematics. We can denote the events as follows: - Let \( A \) be the event that a student passes in Mathematics. - Let \( B \) be the event that a student passes in Computer Science. We are given: - \( P(A) = \frac{4}{5} \) (the probability that a student passes in Mathematics) - \( P(A \cap B) = \frac{1}{2} \) (the probability that a student passes in both Mathematics and Computer Science) ...
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RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. A pair of dice is thrown. Let E be the event that the sum is gre...

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  2. The probability that a student selected at random from class will pass...

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  3. Ten cards numbered 1 through 10 are placed in a box, mixed up thoro...

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  4. Assume that each born child is equally likely to be a boy or a girl...

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  5. A coin is tossed thrice and all the eight outcomes are assumed equally...

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  6. In a school there are 1000 students, out of which 430 are girls. It is...

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  7. Prove that in throwing a pair of dice, the occurrence of the number...

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  8. if A and B be two events such that P(A)=1/4, P(B)=1/3 and P(AuuB)=1...

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  9. A bag contains 4 white, 7 black and 5 red balls. Three balls are drawn...

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  10. A coin is tossed three times. Let the events A ,B and C be defined ...

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  11. A card is drawn from a well-shuffled deck of 52 cards and then a secon...

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  12. A box of oranges is inspected by examining three randomly selected ora...

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  13. A coin is tossed three times. Find P(A/B) in each of the following:...

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  14. Two coins are tossed once. Find P(A/B) in each of the following...

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  15. If P(A)=0. 4 ,P(B)=0. 8 ,P(B/A)=0. 6. Find P(A/B) and (AuuB)dot

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  16. If A and B are two events such that 2P(A)=P(B)=5/(13) and P(A/B)=2/...

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  17. If P(A)=6/(11),P(B)=5/(11) and P(AuuB)=7/(11), find P(AnnB), P...

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  18. If P(A)7/(13),P(B)=9/(13) and P(AnnB)=4/(13), find P(A/B)dot

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  19. If A and B are events such that P(A)=0. 6 ,P(B)=0. 3 and P(AnnB)=0....

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  20. If A and B are two events such that P(AnnB)=0. 32 and P(B)=0. 5 , f...

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