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A bag contains 7 white and 9 black balls...

A bag contains `7` white and `9` black balls. If a ball is drawn at random, what is the probability that it is white?

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The correct Answer is:
`7/16`
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ARIHANT PUBLICATION-PROBABILITY-PART I (QUESTION FOR PRACTICE ) VERY SHORT ANSWER TYPE QUESTIONS
  1. A bag contains 7 white and 9 black balls. If a ball is drawn at random...

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  2. Write the probability of getting exactly two heads in a single toss of...

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  3. If a die is thrown twice in succession, then find the probability that...

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  4. Two dice are rolled in succession. Find the probability that the first...

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  5. There are 6 red and 4 blue balls in a bag. Two balls are drawn at ran...

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  6. Three dice are rolled. What is the probability that the same numbers w...

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  7. Find the probability of getting three heads, when four coins are tosse...

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  8. Write the probability that two persons have the same birthday (conside...

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  9. A and B are two events with P(A)=3/8 and P(A cap B) =1/4 find P(A cap...

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  10. If P(A) = (1)/(2) and P(A nn B) = (1)/(3) then what is the probability...

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  11. Events E and F are such that P("not" E "or" "not" F) = 025, State whet...

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  12. The probability that atleast one of the two events A and B occurs is 0...

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  13. If P(A) = 0.6, P(B) = 0.4 and P(A nn B) = 0.2, then fimd the value of ...

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  14. If P(A/B) gt P(A) then prove that P(B/A) gt P(B)

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  15. If events A and B are not mutually exclusive and P(A/B)=P(B/A) then p...

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  16. A class consists of 25 boys and 15 girls. If a committee of 6 is to be...

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