Advertisements
Advertisements
प्रश्न
Two dice are thrown simultaneously. Find the probability of getting: a multiple of 3 as the sum.
उत्तर
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 = {multiple of 3 as a sum}
= {(1, 2), (2, 1), (1, 5), (5, 1), (2, 4), (4, 2), (3, 3), (3, 6), (6, 3), (5, 4), (4, 5), (6, 6)}
n(E) = 12
p(E) = ?
∴ P(E) = `"n(E)"/"n(S)" = 12/36 = 1/3`.
APPEARS IN
संबंधित प्रश्न
What is the probability that a leap year has 53 Sundays and 53 Mondays?
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is Red
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the robability that both will visit the shop on the same day?
Two customers are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another. What is the probability that both will visit the shop on consecutive days?
What is the probability that a number selected at random from the number 1,2,2,3,3,3, 4, 4, 4, 4 will be their average?
A bag contains 8 red, 6 white and 4 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is Neither white nor black
Two dice are thrown simultaneously. What is the probability that 5 wifi come up at both dice?
A card is drawn from a pack of well - shuffled 52 playing cards . Find the probability that the card drawn is
(iv) an ace or a queen
Two dice are thrown together. The probability of getting the difference of numbers on their upper faces equals to 3 is ______.
From a well-shuffled deck of 52 playing cards, a card is drawn at random. What is the probability of getting a red queen?
