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The probability of an event happening in...

The probability of an event happening in one trial of an ecperiment is 0.6. Three independent trials are made. Find the probability that the event happens at least once.

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MBD PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
  1. If a die is rolled twice and X is the sum of scores obtained is greate...

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  2. If X be a random variable which takes the values 0,1,2,…… with probabi...

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  3. If {0.1,0.2,c,0.5} determines a probability distribution, find c.

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  4. An unbiased die is thrown twice. What is the probability distribution ...

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  5. A fair coin is tossed repeatedly. If tails appear on first four tosses...

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  6. If two cards are drawn at random from a desk of cards, and X be the nu...

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  7. What is the variance of X, given as follows : For the given data :

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  8. A die is thrown 5 times. If getting an even number is a success, what ...

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  9. The standard deviation of a binomial distribution (p+q)^16 is 2. Find ...

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  10. The maximum value of variance in binomial distribution with parameter...

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  11. A binomial distribution has mean 5 and variance 4. Find the number of ...

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  12. A die is thrown 15 times. Getting a number greater than 5 is a success...

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  13. The probability of an event happening in one trial of an ecperiment is...

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  14. Two dice are tossed 6 times. Find the probability that 7 will show an ...

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  15. If X-following a Binomial distribution with parameter n=6 and p, and i...

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  16. A cartoon contains 20 bulbs, 5 of which are defective. Find the proba...

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  17. An unbiased coin is tossed n times. Let X denote the number of times ...

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  18. An experiment succeede twice as often as it fails. Find the probabilit...

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  19. Find the expectation of the number of tails in 15 tosses of a coin.

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

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