Advertisements
Advertisements
प्रश्न
The two events A and B are mutually exclusive if
पर्याय
P(A ∩ B) = 0
P(A ∩ B) = 1
P(A ∪ B) = 0
P(A ∪ B) = 1
उत्तर
P(A ∩ B) = 0
APPEARS IN
संबंधित प्रश्न
Probability of solving specific problem independently by A and B are `1/2` and `1/3` respectively. If both try to solve the problem independently, find the probability that the problem is
- solved
- exactly one of them solves the problem
Two urns contain the set of balls as given in the following table
| Title | White | Red | Black |
| Urn 1 | 10 | 6 | 9 |
| Urn 2 | 3 | 7 | 15 |
One ball is drawn from each urn and find the probability that
- both balls are red
- both balls are of the same colour.
Ten cards numbered 1 to 10 are placed in a box, mixed up thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is more than 4. What is the probability that it is an even number?
The probability of drawing a spade from a pack of card is
A committee of two persons is formed from 3 men and 2 women. What is the probability that the committee will have
- No woman
- One man
- No man
Data on readership of a magazine indicates that the proportion of male readers over 30 years old is 0.30 and the proportion of male readers under 30 is 0.20. If the proportion of readers under 30 is 0.80. What is the probability that a randomly selected male subscriber is under 30?
Gun 1 and Gun 2 are shooting at the same target. Gun 1 shoots on the average nine shots during the same time Gun 2 shoots 10 shots. The precision of these two guns is not the same. On the average, out of 10 shots from Gun 2 seven hit the target. In the course of shooting the target has been hit by a bullet, but it is not known which Gunshot this bullet. Find the chance that the target was hit by Gun 2?
Eight coins are tossed once, find the probability of getting atleast two tails
An integer is chosen at random from the first 100 positive integers. What is the probability that the integer chosen is a prime or multiple of 8?
Choose the correct alternative:
A matrix is chosen at random from a set of all matrices of order 2, with elements 0 or 1 only. The probability that the determinant of the matrix chosen is non zero will be
