Advertisements
Advertisements
प्रश्न
The probability of obtaining an even prime number on each die, when a pair of dice is rolled is
विकल्प
`1/36`
0
`1/3`
`1/6`
उत्तर
`1/36`
Explanation:
n(S) = 36
P(A) = P(Even prime number on each die)
A = {(2, 2)}
n(A) = 1
∴ P(A) = `("n"("A"))/("n"("S")) = 1/36`
APPEARS IN
संबंधित प्रश्न
A family has two children. What is the probability that both the children are girls given that at least one of them is a girl?
A die is thrown twice and the sum of the number appearing is observed to be 6. What is the conditional probability that the number 4 has appeared at least once?
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
Suppose one person is selected at random from a group of 100 persons are given in the following
Title | Psychologist | Socialist | Democrat | Total |
Men | 15 | 25 | 10 | 50 |
Women | 20 | 15 | 15 | 50 |
Total | 35 | 40 | 25 | 100 |
What is the probability that the man selected is a Psychologist?
A die is thrown. Find the probability of getting
- a prime number
- a number greater than or equal to 3
A company has three machines A, B, C which produces 20%, 30% and 50% of the product respectively. Their respective defective percentages are 7, 3 and 5. From these products, one is chosen and inspected. If it is defective what is the probability that it has been made by machine C?
Eight coins are tossed once, find the probability of getting exactly two tails
Eight coins are tossed once, find the probability of getting atmost two tails
A cricket club has 16 members, of whom only 5 can bowl. What is the probability that in a team of 11 members at least 3 bowlers are selected?
Choose the correct alternative:
There are three events A, B and C of which one and only one can happen. If the odds are 7 to 4 against A and 5 to 3 against B, then odds against C is