Distribusi kontinu

Latihan Pertanyaan Wawancara Statistik di R

Zuzanna Chmielewska

Actuary

Diskret vs kontinu

Uniform diskret

Uniform kontinu

Diskret vs kontinu

Uniform diskret

$k$	$P(X = k)$
$1$	$0.2$
$2$	$0.2$
$3$	$0.2$
$4$	$0.2$
$5$	$0.2$

Uniform kontinu

Diskret vs kontinu

Uniform diskret

$k$	$P(X = k)$
$1$	$0.2$
$2$	$0.2$
$3$	$0.2$
$4$	$0.2$
$5$	$0.2$

Uniform kontinu

$ P(X=k)=0 $

$[a, b]$	$P(a \le X < b)$
$[1, 2]$	$0.25$
$[2, 3]$	$0.25$
$[3, 4]$	$0.25$
$[4, 5]$	$0.25$

(misalnya)

Distribusi normal

• bentuk lonceng
• dasar untuk
  • pengambilan sampel
  • pengujian hipotesis
• aturan 68-95-99,7

rnorm(n)

dnorm(x)

pnorm(q)

hist(x)

Ringkasan

• beda distribusi diskret vs kontinu
• fungsi kerapatan
• distribusi normal (termasuk aturan 68-95-99,7)
• fungsi probabilitas di R
• histogram

Ayo berlatih!

Latihan Pertanyaan Wawancara Statistik di R