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What is the probability of the event that a number chosen from 1 to 100 is a prime number? a)`1/5` b)`1/4` c)`2/3` d)`2/7`

A

`1/5`

B

`6/25`

C

`1/4`

D

`13/50`

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CHETANA PUBLICATION-Probability-EXERCISE
  1. Which number cannot represent a probability? a)2/3 b)1.5 c)0.15 d)0.7

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  2. A die is rolled. What is the probability that the number appearing on ...

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  3. What is the probability of the event that a number chosen from 1 to 10...

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  4. There are 40 cards in a bag. Each bears a number from 1 to 40. One car...

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  5. If n(A)=2, P(A)=1/5, Then n(S)=? a)10 b)5/2 c)2/5 d)1/3

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  6. Which of the following cannot be the probability of an event? a)3/5 b)...

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  7. The value of probability always lies between……a)0 to 1 b)-1 to 1 c)1 t...

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  8. The probability of throwing a number smaller than 2 in a fair die is……...

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  9. A card is drawn from a well shuffled pack of 52 cards. The probability...

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  10. Three coins are tossed. Find the probability that tail does not appear...

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  11. Find the sample space 'S' and the sample points 'n(S)': A two digit nu...

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  15. Find the sample space 'S' and the sample points 'n(S)': A card is draw...

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  16. A box contains cards numbered from 1 to 30. Write the sample space 'S'...

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  17. An urn contains 10 red and 8 white balls. Write sample space 'S' and '...

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  18. A card is picked up randomly from well shuffled pack of cards. Write t...

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  19. A box contains 3 apples, 4 oranges and 5 bananas. One fruit is drawn a...

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  20. Tickets numbered 1 to 30 are mixed up together and then a ticket is dr...

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