Some one is asked to take a number from 1 to 100. The probability that it is a prime is
1/5
6/25
1/4
13/50
A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, then the no.of blue balls in the bag is
10
7
8
6
If P(A) denotes the probability of an event A, then
P(A) < 0
P (A) > 1
0 ≤ P (A) ≤ 1
-1 ≤ P(A)
The probability of throwing a number greater than 2 with a fair dice is
4/5
2/5
2/3
What is the probability that a leap year, selected at random will contain 53 Sundays?
3/7
1/7
2/7
53/336
One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is
1/3
One card is drawn from a well-shuffled deck of 52 cards. Then the probability of getting a spade is
1/52
1/2
None of these
If an event cannot occur, then its probability is
1
3/4
0
A bag contains 5 black 7 red and 3 white balls. A ball is drawn from the bag at random. The probability that the ball drawn is not black is
1/10
If two coins are tossed simultaneously, then the probability of getting no head is
1/6
