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Let S be the set of the first 21 natural...

Let S be the set of the first 21 natural numbers, then the probability of
Choosing `{x,y,z}subeS`, such that x,y,z are not consecutive is,

A

`(17)/(70)`

B

`(34)/(70)`

C

`(51)/(70)`

D

`(34)/(35)`

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ARIHANT MATHS ENGLISH-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
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  10. Let H1, H2,..., Hn be mutually exclusive events with P (Hi) > 0, i = ...

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  11. Let E^c denote the complement of an event E. Let E,F,G be pairwise ind...

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  12. A pair of four dice is thrown independently three times. The probabili...

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  14. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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  15. about to only mathematics

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  16. A die is thrown. Let A be the event that the number obtained is gre...

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  17. It is given that the events A and B are such that P(A)=1/4, P(A/B)=1/2...

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  18. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

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  19. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

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  20. A fair die is tossed repeatedly until a 6 is obtained. Let X denote th...

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  21. In a binomial distribution B (b, p=(1)/(4)), if the probability of at...

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