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Out of numbers 1,2,3,….9, two numbers ar...

Out of numbers 1,2,3,….9, two numbers are chosen at random, so that their sum is an even number. The probability for the two chosen numbers to be odd is

A

`3//8`

B

`5//8`

C

`3//55`

D

`2//5`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROBABILITY-EXERCISE-1C
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  4. Three numbers are selected at random without replacement from the set ...

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  5. A box contains 100 tickets, numbered 1,2,….100. Two tickets are chosen...

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  6. Three numbers are chosen at random without replacement from {1,2,3,….8...

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  7. For a biased die the probability for different faces to turn up are gi...

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  8. In a bag there are 6 red, 4 black balls. From it 2 balls (without repl...

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  9. In a class , 40% students study History, 25% Civics and 15% both Histo...

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  10. One ticket is selected at random from 100 tickets numbered 00, 01, 02,...

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  11. One ticket is selected at random from 50 tickets numbered 00, 01, 02, ...

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  12. A box contains 10 mangoes out of which 4 are spoiled. 2 mangoes are ta...

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  13. If A, B are two independent events such that P(A) = 3/4, P(B) =2/5 the...

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  14. If A,B are two independent events such that P(A) = 0.5, P(barB) = 0.3 ...

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  15. If P(A) = 0.4, P(AcupB) =0.8 and A,B are independent then P(B)=

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  16. If A and B are two independent events such that P(B) = 2/7, P(AcupB)=0...

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  17. If A and B are two independent events such that P(barA cap B) = 2//15 ...

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  18. If A and B are two independent events of a random experiment such that...

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  19. If E(1), E(2) are independent events in a random experiment with P(E(1...

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  20. If E(1), E(2), are independent events, such that P(E(1) cap E(2)) = 1...

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