1.

Two different dice are rolled together. Find the probability of getting(i)(ii)(iii).the sum of numbers on two dice to be 5,even number on both dicea doublet.

Answer»

(i) (1, 4) ; (2, 3) ; (3, 2) and (4, 1) = 4 outcomes

Probablity = Number of favorable outcomes/Total number of possible outcome=4/36 = 1/9

(ii) (2, 2) ; (2, 4) ; (2,6) (4, 2) ; (4, 4) ; (4,6) (6, 2) ; (6, 4) and (6, 6) = 9 outcomes

Probablity = Number of favorable outcomes/Total number of possible outcome=9/36 = 1/4

iii) (2,2) ; (4,4) ; (3,3) ; (1,1) ; (5,5) ; (6,6) = 6 outcomes

Probablity = Number of favorable outcomes/Total number of possible outcome=6/36 = 1/6

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