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An unbiased die is thrown once. The probability of getting a prime number is (a) 1/ 3 (b)1 /4 (c) 1/2 (d){1 }/{ 5 }) Answer Answer: (c) { 1 }/{ 2 })

If an event cannot occur, then its probability is(a) 1(b) 3/ 4(c) 1/2 (d) 0 Answer Answer: (d) 0

Which of the following can not be the probability of an event?(a) 0.1(b) (frac { 1 }{ 3 })(c) (frac { 17 }{ 16 })(d) 5% Answer Answer: (c) (frac { 17 }{ 16 })

The probability of getting a prime number in single throw of a dice is:?(a) Zero(b) (frac { 1 }{ 2 })(c) (frac { 1 }{ 4 })(d) (frac { 1 }{ 3 }) Answer Answer: (b) (frac { 1 }{ 2 })

An urn contains lottery tickets numbered from 1 to 100. If a ticket is selected at random, then the probability that it is a perfect square is?(a) 0.1(b) 0.08(c) 0.09(d) 0.01 Answer Answer: (a) 0.1