Question

two dice are thrown simultaneously and the sum of number appearing on them is noted .find the probability that sum is (i) 7 (ii) 9.
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Answer 1

Answer:

Probability that the sum is

(i) 7 =

6/36;

Favourable outcomes: (1,6),(2,5),(3,4),(4,3),(5,2),(6,1)

(ii) 9=

4/36;

Favourable outcomes:(3,6),(4,5),(5,4),(6,3)