June 2024
Beginner to intermediate
352 pages
9h 29m
Korean
Content preview from 개발자를 위한 필수 수학
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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.
327
부록 A
보충 학습
잠깐만요, 방금 조건부 확률을 뒤집은 건가요? 네, 맞습니다!
P
(커피|암)으로 시작해
P
(암|커
피)로 끝났습니다. 인구의 두 하위 집합 (커피를 마시는 사람
65
,
000
명과 암 환자
500
명)을 취
한 다음 조건부 확률을 사용해 결합 확률을 적용하면 전체 인구에서 커피를 마시면서 암에 걸
린 사람이
425
명이 됩니다. 그런 다음 이를 커피를 마시는 사람의 수로 나눠 커피를 마시는 사
람이 암에 걸릴 확률을 구합니다.
그렇다면 베이즈 정리는 어디에 있을까요? 이전에 계산한 식을 사용해
P
(암|커피)를 확장하면
다음과 같습니다.
100,000 ( ) ( | )
(| )
100,000 ( )
PP
P
P
××
=
×
암커피
암커피
커피
암
모집단
N
에 해당하는
100
,
000
이 분자와 분모에 모두 존재하므로 상쇄됩니다. 이제 익숙한 수
식이 보이나요?
() ( | )
(| )
()
PP
P
P
×
=
암
피
암커피
암커
커피
당연히 베이즈 정리와 일치해야 합니다.
( | ) ()
(|)
()
( | ) ()
(| )
()
PB A PA
PA B
PB
PP
P
P
×
=
×
=
커암
암커
암피
피
커피
베이즈 정리가 헷갈리거나 직관적으로 이해하기 어렵다면 주어진 확률에 따라 모집단의 부분
집합을 구해보세요. 그런 다음 조건부 확률을 뒤집을 수 있습니다.
A.5
밑바닥부터
CDF
와 역
CDF
구현하기
1
장에서 정규 분포의 면적을 계산하기 ...
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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.