June 2024
Beginner to intermediate
352 pages
9h 29m
Korean
Content preview from 개발자를 위한 필수 수학
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
61
2
장
확률
따라서 오즈가
7
/
3
이라면 다음과 같이 확률로 바꿀 수 있습니다.
()
()
1 ()
7
3
()
7
1
3
( ) 0.7
OX
PX
OX
PX
PX
=
+
=
+
=
반대로 사건이 발생할 확률을 발생하지 않을 확률로 나누면 확률을 오즈로 바꿀 수 있습니다.
()
()
1 ()
0.70
()
1 0.70
7
()
3
PX
OX
PX
OX
OX
=
−
=
−
=
오즈의 유용함
많은 사람이 확률을 백분율이나 비율로 표현할 때 더 편하게 느끼지만 오즈도 유용한 도구입니
다. 오즈가
2
.
0
이라면 어떤 사건이 일어날 확률이 일어나지 않을 확률보다 두 배 더 높다는 뜻
입니다. 오즈를 사용하면
66.666%
와 같은 백분율보다 더 직관적으로 신념을 설명할 수 있습
니다. 이러한 이유로 오즈는 특히 도박이나 베팅에서 주관적인 믿음을 정량화하는 데 유용합니
다.
6
장에서 다룰 로그 오즈를 사용한 로지스틱 회귀뿐만 아니라 베이즈 요인
Bayes
Factor
을 포함
한 베이즈 통계에서도 오즈는 중요한 역할을 합니다.
2.1.1
확률 대 통계
때때로 사람들은
확률
probability
과
통계
statistics
라는 용어를 혼용해 사용합니다. 두 분야를 혼동하
는 것은 이해할 수 있지만 두 분야에는 분명한 차이가 있습니다. 확률은 순전히 어떤 사건이 일
어날 가능성에 대한 이론적 개념이며 데이터가 필요하지 않습니다. 반면에 통계학은 데이터 없
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.