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A random variable X has the probability ...

A random variable X has the probability distribution:
`{:(X:,1,2,3,4,5,6,7,8),(p(X):,0.15,0.23,0.12,0.10,0.20,0.08,0.07,0.05):}`
For the events E={X is a prime number} and `F={X lt 4}`, the probability `P(E uu F)` is

A

0.87

B

0.5

C

0.35

D

0.77

Text Solution

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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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  3. A random variable X has the probability distribution: {:(X:,1,2,3,4,...

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

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  5. A coin is tossed 3 times. The probability of getting head once and tai...

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  6. If X is the number of heads getting when five coins are tossed, then m...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. In a binomial distribution n=400, p=1//5, It's standard deviation is

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