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The probability that atleast one of the events A and B occurs is 0.6. If A and B occur simultaneously with probability 0.2, then `P(barA) + P(barB)` is

A

`0.4`

B

`0.8`

C

`1.2`

D

`1.6`

Text Solution

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The correct Answer is:
C
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ICSE-PROBABILITY -MULTIPLE CHOICE QUESTION
  1. Two dice are thrown simultaneously. The probability that the sum of th...

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  2. A and B throw two dice each. If A gets a sum of 9 on his two dice, the...

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  3. In a single throw of three dice, the probability of getting the same n...

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  4. Two cards are drawn at random from a well shuffled pack of 52 cards. T...

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  5. Six boys and six girls sit in a row randomly. The probability that the...

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  6. Five boys and four girls sit in a row randomly. The probability that n...

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  7. If A and B are any two events P (A cup B) = 2/3 and P (barB) =1/2 , t...

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  8. If the probability of A to fail in an examination is 1/5 and that of B...

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  9. If A and B are mutually exclusive and exhaustive events and P(A) = 1/3...

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  10. If A, B, C are three mutually exclusive and exhaustive events of an ex...

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  11. In a large metropolitan area, the probabilities are 0.87, 0.36, 0.30 t...

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  12. The probability of an event A occurring is 0.5 and of B is 0.3. If A a...

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  13. The probability that atleast one of the events A and B occurs is 0.6. ...

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  14. A bag contains 150 nuts and 50 bolts. Half of the bolts and half of th...

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  15. A and B are two mutually exclusive events of an experiment: If P(not A...

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  16. Three numbers are chosen at random from the first 20 natural numbers. ...

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  17. Three numbers are chosen at random from the first 20 natural numbers. ...

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  18. Four digit numbers are formed using the digits 0, 2, 3,5 without repet...

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  19. If A and B are mutually exclusive events, then

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  20. The probability that a student will pass his examination is 0.73, the ...

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