August 2015
Intermediate to advanced
272 pages
5h 46m
Japanese
Content preview from Think Stats 第2版 ―プログラマのための統計入門
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.
167
167
11.10 演習問題
測すべきです。ただし、モデルが賭けに勝つ確率を増やしたと言っても、差はごくわ
ずかです。
11.10
演習問題
†
演習問題
11-1
同僚の
1
人が出産を控えていて、出産日を当てる会社の賭けに参加していると仮定
しよう。賭けは妊娠
30
週目に行われるとして、最良の予測をするにはどの変数を使
うとよいだろうか。出産前にわかっている変数しか使えないし、賭けの参加者にわか
るはずの変数しか使えない。
演習問題
11-2
トリヴァース・ウィラード仮説は、多くの哺乳動物で性別比が「母体の状態」、す
なわち、母親の年齢、サイズ、健康状態、社会的地位のような要因に依存すると示唆
する。詳細は
https://en.wikipedia.org/wiki/Trivers-Willard_hypothesis
を参照し
てほしい。
この仮説の効果をヒトについても示した研究があるが、結果は賛否入り混じってい
る。本章では、これらの要因に関係した変数を検定したが、性別比に統計的に有意な
効果を示すものは見つからなかった。
演習として、妊娠と回答者ファイルにある他の変数をデータマイニング方式で検定
しなさい。有意な効果のある因子が何か見つかったか。
演習問題
11-3
予測しようとする量が整数カウントの場合、ポワソン回帰が使える。これは、
StatsModels
で
poisson
という関数として実装されている。
ols
や
logit
と同じよう
に働く。演習として、これを使って、女性の出産児数を予測しなさい。
NSFG
データセッ
トでは、この変数は ...
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.