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Next: $B$3$NJ8=q$K$D$$$F(B... Up: 2 $B%G!<%?I>2A(B Previous: $B%b!<%I(B (PDF ¥Õ¥¡¥¤¥ë: error.pdf)

$BI8=`JP:9(B

$BI8=`JP:9$O!"A4BN$N7k2L$,J?6Q$N$H$3$m$K$^$H$^$C$F$$$k$+;6$i$P$C$F$$$k$+(B $B$rI=$9;XI8$G$"$k!#I8=`JP:9$,>.$5$$Dx%G!<%?$OJ?6Q$N$H$3$m$K$^$H$^$C$F$$$F!"(B $BI8=`JP:9$,Bg$-$$Dx%G!<%?$OJ?6Q$+$i;6$i$P$C$?$b$N$H$J$k!#(B

$BI8=`JP:9(B $\sigma$ $B$O(B $\sigma=\sqrt{V}$ ($V$: $BJ,;6(B) $B$G$"$j!"(B $BJ,;6(B $V$ $B$O!"!V(B($B3F%G!<%?$HJ?6Q$N:9(B)$B$N(B 2 $B>h!W$NJ?6QCM!"$G$"$k$N$G(B

\begin{eqnarray*}
V
& = &
\frac{(-20-2.1)^2\times 1+(-15-2.1)^2\times 2+\cd...
...es 2}{50} \\
& = & 77.09, \\
\sigma & = & \sqrt{77.09}=8.78
\end{eqnarray*}

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Next: $B$3$NJ8=q$K$D$$$F(B... Up: 2 $B%G!<%?I>2A(B Previous: $B%b!<%I(B
Shigeharu TAKENO
2002$BG/(B 7$B7n(B 31$BF|(B