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A box contains 6 tickets. Two of the tic...

A box contains 6 tickets. Two of the tickets carry a price of `Rs. 5//-` each , the other 4 the price of `Rs.1`. If one ticket is drawn, the mean value of the price is

A

`14//3`

B

`7//6`

C

1

D

`7//3`

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The correct Answer is:
D
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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 )
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  4. A random variable X has the probability distribution: {:(X:,1,2,3,4,...

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  5. The probability of getting exactly 2 heads when tossing 7 coins is

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  8. If X is the number of heads getting when 8 coins are tossed , then mea...

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  9. If X is the number on the die , when a die is rolled, then mean and st...

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  10. If X is the sum of the number when two dice are rolled , then mean var...

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  11. In a binomial distribution n=12, p=1//3. Then mean and variance are

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  12. Two coins whose faces are market 1 and 2 are tossed. What is mean valu...

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  13. Four bad apples are mixed accidentally with 20 good apples. Probabilit...

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

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

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

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  17. In a binomial distribution, mean is 5 and the variance is 4 . The numb...

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

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  19. If a binomial distribution has mean 2.4 and variance is 1.44, then n=

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  20. If a binomial distribution has mean 20 and variance is 15, then p=

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