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An urn contains 9 red, 7 white, and 4 bl...

An urn contains 9 red, 7 white, and 4 black balls if two balls are drawn at random the probability that both the balls are red is

A

(18/95)

B

(36/95)

C

(18/190)

D

none of these

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The correct Answer is:
A
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PATHFINDER-PROBABILITY-QUESTION BANK
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  4. If P(A cap B)=5/13 ,P(Acap B)^c=

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  5. P(A)=1/2 ,P(B)=2/5 and P(A cup B)=0.7 state whether the events A and B...

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  8. P(A-B)=1/3,P(A)=1/2,P(B)=1/3 calculate the probability that out of the...

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  11. A,B and C are three mutually exclusive and exhaustive events and P(A) ...

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  12. If 3 unbiased coins are tossed simultaneously describe the sample spac...

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  13. The integers x and y are chosen at random with replacement from nine n...

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  14. Two unbiased coins are thrown together show that the events 1st coin s...

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  17. If P(A)=x,P(B)=y and P(Acap B)=z then express P(bar A cap bar B) and P...

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