There are 10
lamps in a box where 3 of them are dead. A person took a lamp in random
and did not return it back. What is the probability on the second
attempt that the lamp taken is not dead?

a.
½

b.
2/3




c.1/3

d.
2/9

e.
1/9

1

Jawabanmu

2014-02-08T19:34:34+07:00
Jawabannya b, 2/3. pake logika aja
mana bisa pakai logika kalau soal peluang yang kaya
ya lagian kan cuma 10
ada 10 lampu, 3 mati, 7 hidup.. terus diambil 1 acak.
antara 2/9 dan 6/9
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