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n(s) = 6²
= 36
peluang munculnya dua buah mata dadu kurang dari 5
n(a) = (1,1) (1,2) (2,1) (1,3) (3,1) (2,2) ( 1,4 ) ( 4,1) ( 2,3 ) ( 3,2)
= 10
peluang = 10/36
= 5/18
peluang muncul mata pertama 2
n(a) = ( 2,1 ) ( 2,2) ( 2,3) ( 2,4) ( 2,5) ( 2,6)
= 6
peluang = 6/36
= 1/6