" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Nomor 4
Diketahui
bola hitam = 7
bola putih = 3
a. p(1 hitam) = 7/(7+3) = 7/10 = 0,7
b. p(2putih) = C(3,2)/C(10,2)
= 3!/(2!1!) : 10!/(2!8!)
= 3 : 10×9/2
= 3 : 45
= 1/15
atau dengan kaidah pencacahan perkalian,
yaitu
p(2putih) = 3/10 × 2/9 = 6/90 = 1/15
c. Kita pakai kaidah pencacahan untuk menentukannya,
p(1H2P) = 7/10 × 3/9 × 2/8
= 7/10 × 1/3 × 1/4
= 7/120
b.P(2bolaputih)=7/21=1/3
c.P(A)=8/21
6.a.P(jumlah4)=3/36=1/12
b.P(bilprima)=4/36=1/9
c.P(>4)=33/36=11/12
7.a.P(A)=1/8
b.P(AdanG)=4/8=1/2
c.