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A dice is thrown. The probability that t...

A dice is thrown. The probability that the first time 1 occurs at the even throw is

A

`1/6`

B

`5/11`

C

`6/11`

D

`3/11`

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-PROBABILITY-Exercises (Level 1 Single Correct Answer)
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  8. If P(A) gt 0, then the event A is independent of itself if and only if...

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  9. If A and B are two events, then P(A uu B)=P(A nn B) if and only if

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  11. If A and B are two events such that P(A) ne 0 and P(B) ne 1 then P(...

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  12. Two unbiased die are rolled together . Let A={(a,b): a+b=11} and B= { ...

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  13. A bag contains w white and b black balls. A ball is drawn at random an...

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  14. The probability distribution of a random variable X is given as follow...

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  15. Let A and B be two events such that P(A|B) = P(A'|B') = p and P(B) = 0...

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  16. In the Fig. 24.10 the number represents the probability of the event. ...

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  17. If three numbers are selected from the set of the first 20 natural num...

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  18. From a bag containing 30 tickets numbered 1, 2, 3, ... 30, three ticke...

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  19. Suppose an unbiased die has n sides numbered i = 1, 2, ... n. The die ...

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