For the Following Data Set, Approximate the Sample Standard Deviation

question 65

Multiple Choice

For the following data set, approximate the sample standard deviation of emails per day. $$\begin{array} { c | c } \text { Emails (per day) } & \text { Frequency } \\\hline 8 - 11 & 18 \\12 - 15 & 23 \\16 - 19 & 38 \\20 - 23 & 47 \\24 - 27 & 32\end{array}$$

• A) 5.1 emails
• B) 4.0 emails
• C) 25.8 emails
• D) 19.3 emails

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Definitions:

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