Advertisements
Advertisements
Question
The probability of obtaining an even prime number on each die, when a pair of dice is rolled is
Options
`1/36`
0
`1/3`
`1/6`
Solution
`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
RELATED QUESTIONS
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?
From a pack of 52 cards, two cards are drawn at random. Find the probability that one is a king and the other is a queen.
Probability of an impossible event is _________.
Probability that at least one of the events A, B occur is
A, B and C was 50%, 30% and 20% of the cars in a service station respectively. They fail to clean the glass in 5%, 7% and 3% of the cars respectively. The glass of a washed car is checked. What is the probability that the glass has been cleaned?
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?
An experiment has the four possible mutually exclusive and exhaustive outcomes A, B, C, and D. Check whether the following assignments of probability are permissible.
P(A) = `2/5`, P(B) = `3/5`, P(C) = `- 1/5`, P(D) = `1/5`
What is the chance that non-leap year
Choose the correct alternative:
Four persons are selected at random from a group of 3 men, 2 women and 4 children. The probability that exactly two of them are children is