Q4 of 158 Page 34

Two dice are thrown simultaneously. The probability of obtaining total score of seven is

As 2 dice are thrown so there are 6×6 = 36 possibilities.


Let E denote the event of getting a total score of 5.


E = {(1,6),(2,5),(3,4),(4,3),(5,2),(6,1)}


∴ n(E)= 6


Hence,


P(E) = 6/36


As our answer matches only with option (b)


∴ Option (b) is the only correct choice.

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