2006-I-08
答案:(a) $24$ (b) $\dfrac{2}{5}$
… Read - 由於該十個數的平均值為 $11$,則可得
$\be
$\begin{array}{|c|c|c|c|} \hline
& F
$\begin{array}{cl}
= &
$\begin{array}{cl}
= & \dfrac{1}{5}\tim
$\begin{array}{cl}
= & \dfrac{8}{13} \ti
$\begin{array}{cl}
= & 1 – \dfrac{1
$\beg
$\begin{array}{cl}
= & \dfrac{2}{3}\tim
$\begin{array}{cl}
= & (1-0.55)\times 0.
$\begin{array}{cl}
= & \dfrac{3+2+1}{36
$\begin{array}{cl}
= & 1 – \dfrac{2