Probability Quiz

If the probability of a player winning a game is 0.79, then the probability of his losing the same game is

• 1.79

• 0.31

• 0.21%

• 0.21

Form the data 1, 4, 7, 9, 16, 21, 25, if all even numbers are removed, then the probability of getting at random a prime number from the remaining is:

• 2/5

• 1/5

• 1/7

• 2/7

Two dice are rolled together. The probability of getting sum of the numbers on the two dice as 2, 3 or 5 is :

• 7/36

• 11/36

• 5/36

• 4/9

Which of the following is not probability of an event?

• 0.89

• 52%

• 1/0.89

One card is drawn at random from a well shuffled deck of 52 playing cards. The probability that it is a red ace card, is:

• 1/13

• 1/26

• 1/52

• 1/2

Two dice are rolled together. The probability of getting the sum of the two numbers to be more than 10, is

• 1/9

• 1/6

• 7/12

• 1/12

A box contains cards numbered 6 to 55. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square, is

• 7/50

• 7/55

• 1/10

• 5/49

Two dice are thrown together. The probability that they show different numbers is :

• 1/6

• 5/6

• 1/3

• 2/3

The probability of guessing the correct answer to a certain test question is x/6. If the probability of not guessing the correct answer to this question is 2/3, then the value of x is:

• 2

• 3

• 4

• 6

If a digit is chosen at random from the digits 1, 2, 3, 4, 5, 6, 7, 8, 9; then the probability that this digits is an odd prime number is:

• 1/3

• 2/3

• 4/9

• 5/9