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a. 12C1 x 19C0 x 21C0
_________________
52C1
= 12
______
52
b. 12C0 x 19C1 x 21C0
________________
52C1
= 19
___
52
c. kalau "atau" berarti ditambah.
peluang merah + peluang putih
12 19 31
__+___= ___
52 52 52
a. 12/52 b. 19/52 c.31/52
Pb = 19
Pp = 21
12+19+21 = 52
jdi Probabilitas
merah= 12/52
biru = 19/52
putih = 21/52