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The minimum number of times a fair coin needs to be tossed, so that the probability of getting at least two heads is at least 0.96 is :

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ARIHANT MATHS-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
  1. A multuple choice examination has 5 questions. Each questions has thr...

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  2. Four person independently solve a certain problem correctly with pr...

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  3. Of the three independent events E1, E2 and E3, the probability that on...

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  4. A box B(1) contains 1 white ball, 3 red balls, and 2 black balls. An- ...

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  5. A box B1 contains 1 white ball, 3 red balls and 2 black balls. Another...

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  6. Let A and B be two events such that Poverline((AcupB))=(1)/(6),P(AcapB...

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  7. Three boys and two girls stand in a queue. The probability, that the n...

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  8. Box 1 contains three cards bearing numbers 1, 2, 3; box 2 contains fiv...

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  9. Box 1 contains three cards bearing numbers 1, 2, 3; box 2 contains fiv...

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  10. If 12 identical balls are to be placed in 3 identical boxes, then t...

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  11. The minimum number of times a fair coin needs to be tossed, so that th...

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  12. Let n1, and n2, be the number of red and black balls, respectively, i...

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  13. Let n1, and n2, be the number of red and black balls, respectively, i...

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  14. Let two fair six-faced dice A and B be thrown simultaneously. If E1 is...

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  15. A computer producing factory has only two plants T(1) and T(2). Plant ...

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  16. Football teams T1 and T2 have to play two games against each other. It...

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  17. Football teams T1 and T2 have to play two games against each other. It...

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  18. A box contains 15 green and 10 yellow balls. If 10 balls are randomly ...

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  19. If two different numbers are taken from the set {0,1,2,3, ,10}; t...

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  20. For three events A ,B and C ,P (Exactly one of A or B occurs) =P (Exac...

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