Mathematics
Senior High
四行目から五行目にかけての計算のやり方がわかりません。
二項分布6(9, の標準偏差は
Y9p1 の であ
るから,
Y9p(1 の =Y2
9p2ー9p+2=0
(3ゎぁー1) (3p 2) =0
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