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A die is thrown 100 times.If getting an ...

A die is thrown 100 times.If getting an even number is considered a success,then the standard deviation of the number of successes is…..

A

`sqrt 50`

B

5

C

25

D

10

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CHETANA PUBLICATION-BINOMIAL DISTRIBUTION-EXERCISE
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  6. In a binomial distribution,n=4.If 2P(X=3)=3,P(X=2)then p=……….

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  7. If X~B(4,p) and P(X=0)=16/81,then P(X=4)=…………..

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  8. The probability of a shooter hitting a target is 3/4.How many minimum ...

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  9. If the mean and variance of a binomial distribution are 18 and 12 resp...

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  10. A coin is tossed six times.The probability of obtaining 5 or 6 heads i...

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  11. For a binomial distribution,n=5.If P(X=4)=P(X=3) then p=…….

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  12. A coin is tossed four times,then the expected value of the number of h...

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  15. The probability of guessing correctly at least six of 10 answers in Tr...

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  17. If a fair die is rolled 5 times,what is the probability that two of th...

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  18. X~B(n,P) if n=6 and P[x=4]=P[x=2] then P=

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  19. A fair coin tossed 8 times.The probability that it shows heads a large...

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  20. If mean of a binomial distribution is 3 and variance is 3/2 the proba...

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