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The probability of an event that person ...

The probability of an event that person hits the target is `(1)/(4)`. He hits target at least n times. The probability that to hit target n times is more than `(2)/(3)` then minimum value of n is ........

A

2

B

4

C

6

D

8

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The correct Answer is:
B
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KUMAR PRAKASHAN-PROBABILITY-Multiple Choice Questions (MCQs)
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  2. In the box there are a white and b black balls. Two persons A and B ta...

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  3. The probability of an event that person hits the target is (1)/(4). He...

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  4. Each element of the second order determinant is 1 and - 1 then ..........

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  5. A coin is tossed 2n times. During the toss any person can't get head a...

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  6. For events E and F if P(E) le P(F) and P(E cap F) gt 0 then …………

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  7. The probability that a student is not a swimmer is (4)/(5). The probab...

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  8. The probability distribution of random variable X is as follows. ...

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  9. Mean and variance of binomial distribution of random variance X are 4 ...

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  10. In experiment probability that event A occurs in first trail is 0.4 th...

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  11. Probability distribution of random variable X is as follows : The...

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  12. A random variable X has the probability distribution: For the eve...

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  13. If a random variable X can take all non- negative integral values and ...

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  14. The mean and standard deviation of a random variable X are 10 and 5 re...

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  15. The probability distribution of a random variable X is given below : ...

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  16. Mean of the following probability distribution is …………

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  17. A fair dice is rolled 6 times. If "getting an even number" is a succes...

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  18. A fair dice is rolled 6 times. If "getting a prime number" is a "succe...

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  19. A bag consists of 10 balls each marked with one e digits 0 to 9. If fo...

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  20. Mean of the binomial distribution is 100 then it standard deviation li...

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