Soal SMA · Soal cerita · Kesulitan 4/5

A student has a 1/3 chance of winning a game. If they play 4 times, what is the probability they win exactly 2?

A.8/27
B.8/81
C.4/27
D.2/9

Kunci jawaban & pembahasan

Jawaban: 8/27

C(4,2)(1/3)²(2/3)² = 6×(1/9)×(4/9)=24/81=8/27.

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