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The probability of a man hitting a targe...

The probability of a man hitting a target is `1/4`. If he fires seven times, what is the probability of his hitting the target atleast twice?

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PRADEEP PUBLICATION-PROBABILITY-EXERCISE
  1. A coin is tossed 5 times. What is the probability that head appears on...

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  2. Using binomial distribution find the probability of obtaining "less th...

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  3. The probability of a man hitting a target is 1/4. If he fires seven ti...

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  4. In a hurdle race, a player has to cross 10 hurdles. The probability th...

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  5. A bag contains 10 balls each marked with one of the digit is 0 t0 9. I...

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  6. Find the probability distribution of the number of doublets in four th...

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  7. Find the probability distribution of number of doublets in three throw...

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  8. Three cards are drawn in succession form a well shuffled pack of 52 ca...

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  9. Determine the binomial distribution whose mean is 10 and whose standar...

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  10. If the sum of mean and variance of a binomial distribution is 4.8 for ...

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  11. If the sum of the mean and variance of a binomial distribution for 18 ...

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  12. A lot of 100 watches is known to have 10 defective watches. If 8 wath...

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  13. A pair of dice is thrown 7 times if getting a total of 7 is considered...

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  14. A bag contains 7 red, 4 white and 5 black balls. If four balls are dra...

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  15. If getting '5' or '6' in a throw of an unbiased dice is a success and ...

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  16. A bag contains 4 white and 7 black and 5 red balls. 4 balls are drawn ...

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  17. The sum of mean and variance of a binomial distribution is 18 and sum ...

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  18. A box contains 100 tickets each bearing one of the numbers from 1 to 1...

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  19. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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  20. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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