c722c7b68bed007

http://nhiro.org.s3.amazonaws.com/d/9/d9b443db26516200dbbaacaf417620c3.jpg https://gyazo.com/d9b443db26516200dbbaacaf417620c3

(OCR text)

In 1900 Pearson devised the x2 test of goodness of fit. If xi, «,

the observed frequencies in a series of n' classes, and mi, m2,

responding expectations, then the discrepancy between expectation and obser

vation may be measured by calculating

xn', are

the cor

(x-m)

x=S(xm)2

т

. 1900年 ピアソンが

カイ2乗 test of goodness を考案

·このchisqの分布は正規分布ではない

mの具体的な値とは無関係

.n'つまりクラスの個数がパラメータになる(2以上)

数表は2~で作られた

Fisher(1924) p.495

13118 A

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