Page 11 - binomial

MTKP – 3.5/4.5/6/1

1

2

3

4

5

2
2
= [( − ) ]

2
= ∑( − ) . ( )

Jadiragam yang sembuhadalah …………..
3. Berpikir Kritis dan Kreatif : Setelah Anda memahami dan menyelesaikan semua
pertanyaan di atas, silahkan kerjakan soal-soal berikut secara mandiri dalam buku

catatan Anda dan periksakan jawaban Anda kepada Guru

Ayo berlatih!

1. Sebuahuanglogam yang tidaksetimbangdilambungkansebanyak 6 kali
denganprobabilitasmunculnyagambarsebesar 0,6. Jika
Xmenyatakanbanyaknyamunculgambardan Y
menyatakanbanyaknyamunculangka.
a. Tentukan rata-rata untuk X dan Y.
b. Tentukanragamuntuk X dan Y.

2. Suatu variable acak X memilikidistribusiprobabilitassebagaiberikut.

-1 0 1 2

( 0,2 0,1 0,4 0,3
= )
Tentukansimpanganbakuuntuk X atau

...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................
...........................................................................................................................................................................