June 2024
Beginner to intermediate
352 pages
9h 29m
Korean
Content preview from 개발자를 위한 필수 수학
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110
개발자를 위한 필수 수학
3.5.1
중심 극한 정리
정규 분포가 유용한 이유 중 하나는 골든 리트리버의 몸무게처럼 자연에서 많이 나타나는 현상
이기 때문입니다. 하지만 정규 분포는 자연 개체군 밖에서 더 흥미롭게 나타납니다. 모집단에
서 충분히 많은 표본을 추출하면 해당 모집단이 정규 분포를 따르지 않더라도 정규 분포가 드
러납니다.
균일하게 무작위한 모집단을 측정한다고 가정해봅시다.
0
.
0
과
1
.
0
사이의 모든 값은 동등한 가
능성을 가지며 어떤 값도 우선권이 없습니다. 하지만 이 모집단에서 많은 표본을 채취하고 각
각의 평균을 구한 다음, 히스토그램을 그려보면 흥미로운 일이 일어납니다. [예제
3
-
15
]의 파
이썬 코드를 실행하고 [그림
3
-
12
]의 그래프를 살펴보세요.
예제
3-15
파이썬으로 중심 극한 정리 실험하기
# 균등 분포에서 뽑은 표본의 평균은 정규 분포가 됩니다.
import
random
import
plotly.express
as
px
sample_size
=
31
sample_count
=
1000
# 중심 극한 정리, 크기가 31인 1000개의 표본
# 0.0과 1.0 사이의 난수
x_values
=
[(sum([random.uniform(0.0,
1.0)
for
i
in
range(sample_size)])
/
\
sample_size)
for ...
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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.