For the Following Data Set, Approximate the Sample Standard Deviation

question 1

Multiple Choice

For the following data set, approximate the sample standard deviation of commuting times per day. $$\begin{array} { c | c } \text { Commute (in min) } & \text { Frequency } \\\hline 50 - 52 & 5 \\53 - 55 & 8 \\56 - 58 & 12 \\59 - 61 & 13 \\62 - 64 & 11\end{array}$$

• A) 3.9 min
• B) 6.6 min
• C) 2.5 min
• D) 55.7 min

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