Question

Dua buah dadu dilemparkan bersamaan. tentukan peluang munculnya jumlah mata dadu :
a. kurang dari 7
b. 3 atau 4

Answer 1

A. N(s) = 6 kuadrat
= 36
A = (1,1)(1,2)(1,3)(1,4)(1,5)(2,1)(2,2)(2,3)(2,4)(3,1)(3,2)(3,3)(4,1)(4,2)(5,1)
N(A) = 15
P(A) = N(A)/N(S)
= 15/36

b. A = (1,2)(1,3)(2,1)(2,2)(3,1)
N(a) = 5
P(a) = n(a) /n (s)
= 5/36