Question

Standard deviation 7, IS, 18, 23, 24,30, 35, 41, 47.51 29.29.2५ । 27, 2:11.1 , 2.1, 21.1 , 21.1, 29, ।

Answer 1

Determine the standard deviation for the data.

$\begin{gathered} \sigma=\sqrt[]{\frac{(28.9-8)^2+(28.9-16)^2+(28.9-19)^2+(28.9-20)^2+(28.9-23)^2_{}+(28.9-31)^2_{}+(28.9-35)^2_{}+(28.9-39)^2_{}+(28.9-48)^2_{}+(28.9-50)^2_{}}{10}} \\ =\sqrt[]{\frac{1768.9}{10}} \\ =13.3 \end{gathered}$

So standard deviation is 13.3.