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Two numbers b\ a n d\ c are chosen at ra...

Two numbers `b\ a n d\ c` are chosen at random with replacement from the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. Find the probability that `x^2+b x+c >0\ for\ a l l\ x in Rdot`

A

`(17)/(123)`

B

`(32)/(81)`

C

`(82)/(125)`

D

`(45)/(143)`

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ARIHANT MATHS ENGLISH-PROBABILITY-Exercise (Questions Asked In Previous 13 Years Exam)
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  14. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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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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