\[\boxed{\mathbf{1203}\mathbf{.}}\]
\[1)\ \overline{X} =\]
\[= \frac{2 \bullet 3 + 3 \bullet 2 + 4 \bullet 2 + 6 \bullet 3}{3 + 2 + 2 + 3} =\]
\[= \frac{6 + 6 + 8 + 18}{10} = \frac{38}{10} = 3,8.\]
\[Дисперсия\ совокупности\ \]
\[значений:\]
\[= \frac{25,6}{10} = 2,56.\]