n (A) = {2,3,5,7} --> 4
bola bernomor bilangan prima
n (S) = {1,2,3,4,5,6,7,8} --> 8
banyak seluruh bola
maka,
p (A) = n (A) / n (S)
= 4/8
= 1/2
semoga membantu
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n (A) = {2,3,5,7} --> 4
bola bernomor bilangan prima
n (S) = {1,2,3,4,5,6,7,8} --> 8
banyak seluruh bola
maka,
p (A) = n (A) / n (S)
= 4/8
= 1/2
semoga membantu