In a throw of dice, the probability of getting a prime number is
2
1/2
3/2
6
The numbers 1,2,3, and 4 are written separately on four slips of paper.The slips are put in a box and mixed thoroughly.A person draws two slips from the box, one after the other without replacement.Then the sample space for the experiment is
S = {(1,4), (1,3), (1, 2) , (2, 0) , (2, 1) , (2, 3), (3, 1) , (3, 2) , (3, 4) , ( 4, 0) , (4, 1) , (4, 3) }
S = {(1, 1), (1, 2) , (1, 3) , (2, 1) (2, 2) (2,3), (3,1) , (3,2) ,(3,4) , (4,0) , (4,1) , (4, 3) }
S = {(1,2), (1,3), (1,4 ), (2, 1) , (2, 3), (2, 4), (3, 1) , (3, 2), (3, 4) , (4, 1), (4, 2) , (4, 3)}
None of these
Three letters, to each of which corresponds an addressed envelope are placed in the envelopes at random.The probability that all letters are placed in the right envelopes is
1/3
1
1/6
0
The probability of getting an even number when a die is rolled is
1/36
The probability of getting a number greater than or equal to 2 or an even number in a single throw of a fair dice is
2/3
5/6
If a coin is tossed twice, the probability of getting at least one head is :
1/4
3/4
A card is drawn from a packet of 100 cards numbered 1 to 100.The probability of drawing a number which is a square is
1/10
9/100
1/100
2/100
Two dice are thrown at a time.The probability that the difference of the numbers shown on the dice is 1 is
5/18
In a single throw of two dice, the probability of getting a sum of 10 is
1/12
The probability that in a family of 3 children, there will be at least one boy is
7/8
1/8
4/8
6/8
