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Find the probability of guessing correct...

Find the probability of guessing correctly at least 5 of the eight answers in a True-False objective test.

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The correct Answer is:
`(93)/(256)`
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CHHAYA PUBLICATION-BINOMIAL DISTRUTION-VERY SHORT ANSWER TYPE QUESTIONS
  1. A student obtained the following results.Comment on the accuracy of hi...

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  2. Seven unbiased coins are tossed simultaneously at random. Find the pro...

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  3. Seven unbiased coins are tossed simultaneously at random. Find the pro...

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  4. Seven unbiased coins are tossed simultaneously at random. Find the pro...

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  5. Eight coins are thrown simultaneously. Show that the probability of ge...

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  6. An unbiased coin is tossed 8 times. Find using binomial distribution, ...

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  7. Six coins are tossed simultaneously. Find the probability of getting ...

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  8. Six coins are tossed simultaneously. Find the probability of getting ...

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  9. Six coins are tossed simultaneously. Find the probability of getting ...

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  10. Six coins are tossed simultaneously. Find the probability of getting ...

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  11. Find the probility that in a family of 5 children there will be at l...

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  12. Find the probility that in a family of 5 children there will be at l...

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  13. The mean and variance of a binomial distribution are 4 and 3 respectiv...

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  14. Find the probability of guessing correctly at least 5 of the eight ans...

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  15. If a fair is tossed 10 times, find the probability of exactly six he...

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  16. If a fair is tossed 10 times, find the probability of at least six ...

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  17. If a fair is tossed 10 times, find the probability of at most six h...

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  18. Five cards are drawn successively with replacement from a well-shuffle...

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  19. Five cards are drawn successively with replacement from a well-shuffle...

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  20. Five cards are drawn successively with replacement from a well-shuffle...

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