期待値

Expected Value

期待値とは

平均のもう一つの考え方

Another Way of Thinking of the Mean

期待値

Expected Value

期待値の性質１

Expected Value Properties 1

期待値の性質２

Expected Value Properties 2

分散

分散を期待値で表す

Variance as an Expected Value

確率変数の線形変換１

Linear Transformation of Random Variables 1

確率変数の線形変換２

Linear Transformation of Random Variables 2

分散の性質１

Variance Properties 1

分散の性質２

Variance Properties 2

標本平均の期待値

Expected Value of the Sample Mean

標本平均の分散

Variance of the Sample Mean