CHAPTER 13 : PROBABILITY /KEBARANGKALIAN

CHAPTER 13 : SIMPLE PROBABILTY

BAB 13 : KEBARANGKALIAN MUDAH

SIMPLE PROBABILITY

KEBARANGKALIAN MUDAH

13.4 Simple Probability

13.4 Kebarangkalian Mudah

LEARNING STANDARD

STANDARD PEMBELAJARAN

Solve problems involving the probability of an event.

Menyelesaikan masalah yang melibatkan kebarangkalian suatu peristiwa. 

CONTOH

a) S={M,E,N,J,U,S,T,I,F,I,K,A,S,I} n(S)=14
V-{event choosing a vowel/peristiwa memilih vokal}      V={E,U,I,I,A,I}
P(huruf vokal) /P(VOWEL)

 $=\frac{6}{14}=\frac{3}{7}$  
b) V' =the complement/peristiwa pelengkap
 V'={Not choosing a vowel/ tidak memilih vokal}
P(V') = $1-\frac{3}{7}=\ \frac{4}{7}$  

Multiple Choice

1) A fair dice is tossed. Choose the sample space and number of elements.

Sebiji dadu adil dilambung. Pilih ruang sampel, S dan bilangan sample.

• S={2,3,4,5}

• S={1,2,3,4,5,6}

• S={1,2,3,5,6}

• S={2,4,6}

Multiple Choice

A fair dice is tossed.

Sebiji dadu adil dilambung.

The Probability of getting even number.

Kebarangkalian mendapat nombor genap.

• A={1,2,3,4,5,6} P(A)=1

• A={2,4,5,6}

  $P(A)=\frac{4}{6}$

• A={2,4,6}
  $P\left(A\right)=\frac{3}{6}=\frac{1}{2}$
  

• A={1,3,5}
  $P\left(A\right)=\frac{3}{6}=\frac{1}{2}$
  

Multiple Choice

A fair dice is tossed.

Sebiji dadu adil dilambung

The probability of getting a multiple of 2.

Kebarangkalian mendapat gandaan 2

• B={2}
  

  $P\left(B\right)=\frac{1}{6}$

• B={1,2} $P\left(B\right)=\frac{2}{6}=\frac{1}{3}$

• B={1,2,3,6}
  $P\left(B\right)=\frac{4}{6}=\frac{2}{3}$
  

• B={2,4,6}
  $P\left(B\right)=\frac{3}{6}=\frac{1}{2}$
  

Multiple Choice

A letter is selected from the word 'SEKOLAHKU'.

Satu huruf dipilih secara rawak daripada perkataan 'SEKOLAHKU'.

Pilih ruang sampel dan bilangan sampel.

• S={S,E,K,O,L,A,H,K,U}

  n(S)=6

• S={S,E,K,O,L,A,H,K,U}

  n(S)=9

• S={S,E,K,O,L,A,H}

  n(S)=7

• S={S,E,K,O,L,A,H,U}

  n(S)=8

Multiple Choice

A letter is selected from the word 'SEKOLAHKU'.

Satu huruf dipilih secara rawak daripada perkataan 'SEKOLAHKU'.

The probability of getting letter 'K'.

• A={K,K}
  

  $P\left(A\right)=\frac{2}{9}$

• A={K}
  $P\left(A\right)=\frac{1}{9}$
  

Multiple Choice

A letter is selected from the word 'SEKOLAHKU'.

Satu huruf dipilih secara rawak daripada perkataan 'SEKOLAHKU'.

The probability of getting a consonant.

Kebarangkalian mendapat huruf konsonan.

• B={ S,K,L,H}
  

  $P\left(B\right)=\frac{4}{9}$

• B={S,K,L,H,K}
  $P\left(B\right)=\frac{5}{9}$
  

• B={E,O,A,U}
  $P\left(B\right)=\frac{4}{9}$