# F compute the sample standard deviation for each

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f) Compute the sample standard deviation for each class rounded to 1 decimal place. Use the process forcomputing the standard deviation for grouped data. No need of showing your work on this paper (you’reexpected to work it on your scratch paper).
g) What does a smaller standard deviation tell you about the spread of the scores in that class? The class with the smaller standard deviation indicates that: __B___________
2. The standard deviation is often used by investors to measure the risk of a stock or a stock portfolio. The basic idea is that the standard deviation is a measure of volatility: the more a stock's returns vary from the stock's average return, the more volatile the stock.Consider the following two stock portfolios and their respective returns (in percent) over the last six months. Questions: a) Use your calculator to compute the mean, median, range, sample standard deviation and sample
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