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確率統計3回目

Last updated at Posted at 2019-10-15

#確率変数から求める分散s**2
image.png

##STEP1 期待値を求める
image.png

#STEP2 偏差を求めて2乗する
image.png

##STEP3 偏差の2乗の期待値を求める
image.png

参考文献
https://atarimae.biz/archives/19027#step2-3

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