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A die is thrown twice and the sum of the...

A die is thrown twice and the sum of the numbers appearing is observed to be 7.What is the conditional probability that the number 2 has appeared at least once.

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V PUBLICATION-PROBABILITY-QUESTION BANK
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  7. If 'A' and 'B' are any two events such that 'P(A)+P(B)-P(A' and 'B)=P(...

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  8. Consider the random experiment of throwing a die. Let' E be the event ...

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  9. If 'P(E)=0.40, P(F)=0.35' and 'P(E, uu F)=0.55', find 'P(E / F)' and. ...

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  10. A' and 'B' are two events such that 'P(A)=1/4, P(A / B)=(1/3)' and 'P(...

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  12. A bag contains 4 red and 3 black balls. A second bag contains 2 red an...

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  13. If A and B are independent events, Prove that bar A and bar B are inde...

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  14. A problem is given to three students whose chances of solving it are ...

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  15. A can hit a target 3 times in 6 shots, B 2 times in 6 shots and C 4 ti...

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  17. An urn contains 4 white and 3 red balls. Find the probability distribu...

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  18. Find the probability distribution of the number of green balls drawn w...

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