The amount of hours spent on homework and studying per week for a sample of 30 random students is given below:
$\begin{array}{cccccccccc} 3 & 5 & 6 & 6 & 7 & 7 & 7 & 7 & 8 & 8 \ 9 & 10 & 10 & 12 & 13 & 14 & 14 & 14 & 15 & 15 \ 17 & 19 & 20 & 20 & 21 & 21 & 24 & 27 & 28 & 30 \ \end{array}$
(a) Find the mean.
(b) Find the median.
(c) Find the mode.
(d) Find the range.
(e) Find the standard deviation to three significant digits.

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The Answer of The amount of hours spent on homework and studying per week for a sample of 30 random students is given below:
$\begin{array}{cccccccccc} 3 & 5 & 6 & 6 & 7 & 7 & 7 & 7 & 8 & 8 \ 9 & 10 & 10 & 12 & 13 & 14 & 14 & 14 & 15 & 15 \ 17 & 19 & 20 & 20 & 21 & 21 & 24 & 27 & 28 & 30 \ \end{array}$
(a) Find the mean.
(b) Find the median.
(c) Find the mode.
(d) Find the range.
(e) Find the standard deviation to three significant digits.

The Amount of Hours Spent on Homework and Studying Per