\[\boxed{\mathbf{1202}\mathbf{.}}\]
\[1)\ 10\ см,\ 12\ см,\ 7\ см,\ 11\ см;\]
\[\overline{X} = \frac{10 + 12 + 7 + 11}{4} = \frac{40}{4} =\]
\[= 10;\]
\[= \frac{0^{2} + 2^{2} + 3^{2} + 1^{2}}{4} =\]
\[= \frac{4 + 9 + 1}{4} = \frac{14}{4} = 3,5.\]
\[2)\ 16\ г,\ 14\ г,\ 13\ г,\ 17\ г;\]
\[\overline{X} = \frac{16 + 14 + 13 + 17}{4} = \frac{60}{4} =\]
\[= 15;\]
\[= \frac{1^{2} + 1^{2} + 2^{2} + 2^{2}}{4} =\]
\[= \frac{1 + 1 + 4 + 4}{4} = \frac{10}{4} = 2,5.\]
\[3)\ 11\ с,\ 14\ с,\ 11\ с,\ 12\ с,\ 12\ с;\]
\[\overline{X} = \frac{11 + 14 + 11 + 12 + 12}{5} =\]
\[= \frac{60}{5} = 12;\]
\[= \frac{1^{2} + 2^{2} + 1^{2} + 0^{2} + 0^{2}}{5} =\]
\[= \frac{1 + 4 + 1}{5} = \frac{6}{5} = 1,2.\]
\[4)\ 5\ м,\ 13\ м,\ 8\ м,\ 12\ м,\ 12\ м;\]
\[\overline{X} = \frac{5 + 13 + 8 + 12 + 12}{5} =\]
\[= \frac{50}{5} = 10;\]
\[= \frac{5^{2} + 3^{2} + 2^{2} + 2^{2} + 2^{2}}{5} =\]
\[= \frac{25 + 9 + 4 + 4 + 4}{5} = \frac{46}{5} =\]
\[= 9,2.\]