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.
117
3
장
기술 통계와 추론 통계
좋은 패를 안겨줄 가능성은 항상 존재합니다. 이를 통해 관심 대상의 변수가 실험에 영향을 미
치지 않았으며 긍정적인 결과는 우연한 운에 불과하다는
귀무 가설
null
hypothesis
(
H
0
)을 세울 수
있습니다.
대립 가설
alternative
hypothesis
(
H
1
)은 문제의 변수(
통제 변수
control
variable
라고 함 )가 긍정적
인 결과를 야기한다는 가설입니다.
일반적으로 통계적 유의성의 임곗값은
5
% 이하의
p
값, 즉
0
.
05
입니다.
0
.
014
는
0
.
05
보다 작
기 때문에 뮤리얼이 우연히 맞췄다는 귀무 가설을 기각할 수 있습니다. 그런 다음 뮤리얼이 차
또는 우유를 먼저 따르는지 감지하는 특별한 능력이 있다는 대립 가설을 지지할 수 있습니다.
이 찻잔 감별 예시에서 알려주지 않는 한 가지는
p
값을 계산할 때 해당 사건과 그보다 더 희귀
한 사건의 확률을 모두 포착한다는 점입니다. 다음 예제에서 정규 분포를 사용하면서 이 문제
를 살펴봅시다.
3.5.4
가설 검정
과거 연구에 따르면 감기의 회복 기간은 평균이
18
일이고 표준 편차는
1
.
5
일인 정규 분포를 따
릅니다. 즉, [그림
3
-
16
]과 [예제
3
-
18
]에서 볼 수 있듯이
15
일에서
21
일 사이에 회복될 확률
은 약
95
%입니다.
그림
3-16
15
일에서
21
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.