in a single throw of two dice what is probability of getting sum 9
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krusha1:
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sample space = 36
s = { (1,2 ) (1,3 ) (1,1) (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) }
E : getting sum 9
E : { (4,5) (5,4) 3,6) (6,3) }
P(E) = 4/36 = 1/9
s = { (1,2 ) (1,3 ) (1,1) (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) }
E : getting sum 9
E : { (4,5) (5,4) 3,6) (6,3) }
P(E) = 4/36 = 1/9
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