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It is observed that,it rains on 12 days ...

It is observed that,it rains on 12 days out of 30 days.Find the probability that (i)it rains exactly 3 days of week.

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CHETANA PUBLICATION-BINOMIAL DISTRIBUTION-EXERCISE
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  2. In a large school,80% of the pupils like mathematics.A visitor to the ...

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  3. It is observed that,it rains on 12 days out of 30 days.Find the probab...

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  4. It is observed that,it rains on 12 days out of 30 days.Find the probab...

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  5. If probability of success in a single trail is 0.01.How many trails ar...

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  6. In binomial distribution with five Bernoulli's trails,probability of o...

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  7. Each of five questions on a multiple chice examination has four choice...

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  8. Each of five questions on a multiple chice examination has four choice...

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  9. The probability that a person who undergoes a kidney operation will re...

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  10. The probability that a person who undergoes a kidney operation will re...

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  11. The probability that a person who undergoes a kidney operation will re...

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  12. The probability that a person who undergoes a kidney operation will re...

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  13. The centres for disease control have determined that when a person is ...

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  14. Given that X~B(n,p) (i)If n=10 and p=0.4,find E(X) and Var(X).

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  15. Given X~B(n,p)(ii)If P=0.6,E(X)=6,find n and Var(X).

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  16. Given X~B(n,p)(iii)If E(X)=6,Var(X)=4.2,find n and P.

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  17. Given X~B(n,p)(iv)If n=25,E(X)=10,find P and SD(X).

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  18. Find the probability of guessing correctly at least seven out of ten a...

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  19. An insuranceagent lives of 5 men,all of the same age and in good healt...

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  20. If the probability that a flourescent light has a useful life of atlea...

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