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Explain why the experiment of tossing a ...

Explain why the experiment of tossing a coin three times is said to have binomial distribution.

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Tossing coine 3 times.
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The probability of getting exactly two heads when tossing a coin three times is

KUMAR PRAKASHAN-PROBABILITY-Solutions of NCERT Exemplar Problems (Short Answer Type Questions)
  1. A bag contains 5 red marbles and 3 black marbles. Three marbles are dr...

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  2. Two dice are thrown together and the total score is noted. The events ...

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  3. Explain why the experiment of tossing a coin three times is said to ha...

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  4. If A and B are two events such that P(A) = (1)/(2), P(B)= (1)/(3) and ...

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  5. Three events A, B and C have probabilities (2)/(5), (1)/(3) and (1)/(...

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  6. Let E(1) and E(2) be two independent events such that P(E(1)) = P(1) a...

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  7. A discrete random variable X has the probability distribution given as...

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  8. Prove that, P(A)=P(A cap B) +P(A cap barB)

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  9. Prove that P(A cup B) = P(A cap B)+P(A cap barB)+P(barA cap B)

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  10. If X is the number of tails in three tosses of a coin, determine the s...

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  11. In a dice game, a player pays a stake of ₹ 1 for each throw of a die. ...

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  12. Three dice are thrown at the sametime. Find the probability of getting...

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  13. Suppose 10,000 tickets are sold in a lottery each for ₹ 1. First prize...

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  14. A bag contains 4 white and 5 black balls. Another bag contains 9 white...

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  15. Bag-I contains 3 black and 2 white balls, Bag-II contains 2 black and ...

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  16. A box has 5 blue and 4 red balls. One ball is drawn at random and not ...

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  17. Four cards are successively drawn without replacement from a deck of 5...

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  18. If a die is thrown 5 times. Then find the probability that an odd numb...

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  19. Ten coins are tossed. Then what is the probability of getting atleast ...

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  20. The probability of a man hitting a target is 0.25. He shoots 7 times, ...

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