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In a family of three children, the proba...

In a family of three children, the probability of having at least one boy is:

A

`7/8`

B

`1/8`

C

`5/8`

D

`3/4`

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The correct Answer is:
D
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OSWAL PUBLICATION-PROBABILITY-Multiple Choice Questions
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  4. The probability of getting an even number when a die is thrown once is...

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  5. A box contains 90 discs, numbered from 1 to 90. If one disc is drawn a...

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  6. If P(A) denotes the probability of an event A, then:

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  7. One ticket is drawn at random from a bag containing tickets numbered 1...

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  8. Two dice are thrown together. The probability of getting the same numb...

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  9. Cards bearing numbers 2, 3, 4, ..., 11 are kept in a bag. A card is dr...

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  10. The probability of throwing a number greater than 2 with a single die ...

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  11. A card is drawn from a well-shuffled deck of 52 playing cards. The pro...

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  12. Which of the following cannot be the probability of an event:

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  13. A die thrown once. What is the probability of getting a number less th...

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  14. Cards bearing numbers 3 to 20 are placed in a bag and mixed thoroughly...

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  15. A bag contains 4 red and 6 black balls. A ball is taken out of the bag...

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  16. A card is drawn out from a well-shuffled deck of 52 cards. What is the...

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  17. Two friends were born in the year 2000. What is the probability that t...

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  18. What is the probability that two friends have different birthdays?

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  19. A die is thrown once. The probability of getting a prime number is:

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  20. What is the probability of an impossible event?

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