Advertisements
Advertisements
Question
Two dice are thrown simultaneously. Find the probability of getting: a doublet of even number.
Solution
n(s) = 36 i.e.
(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)
(2,1)(2,2)(2,3)(2,4)(2,5)(2,6)
(3,1)(3,2)(3,3)(3,4)(3,5)(3,6)
(4,1)(4,2)(4,3)(4,4)(4,5)(4,6)
(5,1)(5,2)(5,3)(5,4)(5,5)(5,6)
(6,1)(6,2)(6,3)(6,4)(6,5)(6,6)}
Event = { getting a doublet of even number }
Event = {(2, 2), (4,4), (6, 6)}
n(E) = 3
P(E) = ?
∴ P(E) = `"n(E)"/"n(S)" = 3/36 = 1/12`.
APPEARS IN
RELATED QUESTIONS
In a simultaneous throw of a pair of dice, find the probability of getting a sum less than 6
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is neither an ace nor a king
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is Black
A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the
probability that ball drawn is white?
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a face card
Cards marked with numbers 1, 3, 5, ..., 101 are placed in a bag and mixed thoroughly. A card is drawn at random from the bag. Find the probability that the number on the drawn card is a prime number less than 20.
A die has 6 faces marked by the given numbers as shown below:
| 1 | 2 | 3 | – 1 | – 2 | – 3 |
The die is thrown once. What is the probability of getting the smallest integer?
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well shuffled. Now one card is drawn at random from the remaining cards. Determine the probability that the card is a heart.
All the jacks, queens and kings are removed from a deck of 52 playing cards. The remaining cards are well shuffled and then one card is drawn at random. Giving ace a value 1 similar value for other cards, find the probability that the card has a value 7
At a fete, cards bearing numbers 1 to 1000, one number on one card, are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square greater than 500, the player wins a prize. What is the probability that the first player wins a prize?
