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The mean of the 'Sixes' in two tosses of...

The mean of the 'Sixes' in two tosses of an unbiased die is

A

`(1)/(3)`

B

`(1)/(6)`

C

`(2)/(3)`

D

`(5)/(18)`

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The correct Answer is:
A
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AAKASH SERIES-RANDOM VARIABLE -EXERCISE - I
  1. If 4 coins are tossed then the mean and variance of X where X is the n...

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  2. Which of the following is variance of random variable x=x(i) and P(x=x...

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  3. The mean of the 'Sixes' in two tosses of an unbiased die is

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  4. A die is rolled twice. Getting a number greater than 4 is called a 'Su...

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  5. A bag contains 4 white balls and 3 black balls. If two balls are drawn...

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  6. Four bad apples are mixed accidentally with 20 good apples. If 3 apple...

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  7. If two dice are rolled thrice, then the mean of X where X denotes the ...

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  8. In a binomial distribution n=20, q=0.75. Then mean =

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  9. In a binomial distribution the mean is 20, standard deviation is sqrt1...

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  10. If the mean of a binomial distribution with 9 trials is 6, then its va...

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  11. For binomial distribution n=10, q=0.4, then mean is

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  12. Six coins are tossed simultaneously . The probability of getting at le...

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  13. If a binomial distribution have parameters 9, 1//3 then P(X=4)=

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  14. If the mean and variance of a binomial distribution are 15//4 and 15//...

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  15. Let X be a binomially distributed variate with mean 10 and variance 5....

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  16. The mean and standard deviation of a binomial variate X are 4 and sqrt...

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  17. The mean and the variance of a binomial distribution are 4 and 2 respe...

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  18. X is a binomial variate with parameters n=6 and p. If 4P(X=4)=P(X=2), ...

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

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  20. From a pack of 52 cards, 3 cards are drawn successively with replaceme...

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