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When a coin is tossed n times, if the pr...

When a coin is tossed n times, if the probability for getting 6 heads is equal to the probability of getting 8 heads, then the value of n is

A

10

B

12

C

14

D

20

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )
  1. In the experiment of tossing a coin n times, if the variable X denotes...

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  2. The least number of times a fair coin must be tossed so that the proba...

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  3. When a coin is tossed n times, if the probability for getting 6 heads ...

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  4. Twenty identical coins each with probability p of showing heads are to...

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  5. One hundred identical coins each with probability p showing up heads a...

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  6. Consider 5 independent Bernouli's trials each with probability of succ...

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  7. A fair coin is tossed 99 times . Let X be the number of times heads oc...

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  8. X follows a binomial distribution with parameters n and p where 0 lt p...

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  9. The probability that a candidate seeure a seat in Engineering through ...

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  10. A pair of fair dice is thrown independently three . The peobability of...

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  11. In an experiment the success is twice that of failure . If the experim...

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  12. The probability that a bomb dropped from a plane strikes the target i...

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  13. The probability of a man hitting a target is 1//4 . If he fires 7 time...

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  14. The probability that a man can hit a target is 3//4. He makes 5 trials...

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  15. The probability of happening of an event in an experiment is 0.4. The ...

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  16. The probability of happening of an event in trial is 0.5. The probabil...

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  17. The probability that a student is not swimmer is 1//4. Then the probab...

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  18. In a family with 4 children, the probability that there are at least t...

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  19. A die is rolled 3 times. If getting a one is considered as a success, ...

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  20. A die is rolled 3 times. If getting a one is considered as a success, ...

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