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In an interview for a job, 5 boys and 3 ...

In an interview for a job, 5 boys and 3 girls appeared. If 4 persons are to be selected at randon from this group, then find the probability that 3 boys and 1 girl or 1 boy and 3 girls are selected.

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The correct Answer is:
`(1)/(2)`
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KUMAR PRAKASHAN-PROBABILITY-PRACTICE WORK
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  9. A basket contains 15 guava and 12 banana. Out of which 5 guava and 7 b...

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  10. If A and B are mutually exclusive events, P(A) = 0.35 and P(B)= 0.45, ...

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  11. Find the probability that when a hand of 7 cards is drawn from a well ...

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  12. In an interview for a job, 5 boys and 3 girls appeared. If 4 persons a...

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  13. A box contains 8 red, 3 white and 9 black balls. If three balls are dr...

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  14. A group consists of 3 men, 2 women and 4 children. If four persons are...

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  15. An integer is chosen at random from first 200 natural numbers. What is...

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  16. The probability that a student will receive A, B, C or D grade are 0.4...

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  18. Without repetition of the numbers, four digit numbers are formed with ...

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