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Find the probability distribution of the...

Find the probability distribution of the number of heads when three coins are tossed.

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RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions
  1. Let X be a random variable which assumes values x1, x2, x3,\ x4 such t...

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  2. Two cards are drawn from a well shuffled pack of 52 cards. Find the...

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  3. Find the probability distribution of the number of heads when three co...

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  4. Four cards are drawn simultaneously from a well shuffled pack of 52...

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  5. A bag contains 4 red and 6 black balls. Three balls are drawn at ra...

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  6. Five defective mangoes are accidentally mixed with 15 good ones. Four ...

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  7. Two dice are thrown together and the number appearing on them noted. X...

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  8. A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, ...

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  9. Five defective bolts are accidently mixed with twenty good ones. If...

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  10. Tow cards are drawn successively with replacement from a well-shuffled...

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  11. Find the probability distribution of the number of white balls drawn i...

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  12. From a lot containing 25 items, 5 of which are defective, 4 are, cho...

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  13. Find the probability distribution of Y in two throws of two dice, w...

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  14. An urn contains 4 white and 3 red balls. Find the probability distr...

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  15. Two cards are drawn from a pack of well shuffled 52 cards one by one w...

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  16. Let X represent the difference between the number of heads and the ...

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  17. From a lot of 10 bulbs, which includes 3 defectives, a sample of 2 bul...

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  18. The probability distribution of a random variable X is given below: X ...

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  19. Let a pair of dice be thrown and the random variable X be the sum o...

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  20. In a single throw of a dice; if X denotes the number on its upper face...

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