簡約 0.4-1.96sqrt((0.40.6)/(600))

解

簡約

0.4 - 1.96 \cdot \frac{0.4 \cdot 0.6}{600}

\frac{451}{1250}

十進法表記

0.3608

解答ステップ

0.4 - 1.96 \frac{0.4 \cdot 0.6}{600}

\frac{0.4 \cdot 0.6}{600} = \frac{1}{50}

= 0.4 - 1.96 \cdot \frac{1}{50}

0.4 = \frac{2}{5}

= \frac{2}{5} - 1.96 \cdot \frac{1}{50}

1.96 = \frac{49}{25}

= \frac{2}{5} - \frac{49}{25} \cdot \frac{1}{50}

\frac{49}{25} \cdot \frac{1}{50} = \frac{49}{1250}

= \frac{2}{5} - \frac{49}{1250}

\frac{2}{5} - \frac{49}{1250} = \frac{451}{1250}

= \frac{451}{1250}