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
Cards marked with numbers 1, 2, 3, .., 25 are placed in a box and mixed thoroughly and one card is drawn at random from the box. The probability that the number on the card is a multiple of 3 or 5 is(a) (frac { 8 }{ 25 })(b) (frac { 13 }{ 25 })(c) … Read more
Three unbiased coins are tossed. What is the probability of getting at most two heads?(a) (frac { 7 }{ 8 })(b) (frac { 3 }{ 8 })(c) (frac { 1 }{ 4 })(d) (frac { 3 }{ 7 }) Answer Answer: (a) (frac { 7 }{ 8 })
A card is drawn from a pack of 52 cards at random. The probability of getting either an ace or a king card is(a) (frac { 4 }{ 13 })(b) (frac { 8 }{ 13 })(c) (frac { 3 }{ 13 })(d) (frac { 2 }{ 13 }) Answer Answer: (d) (frac { 2 }{ … Read more