Approximate the Variance and Standard Deviation of a Variable from Grouped

question 50

Multiple Choice

Approximate the Variance and Standard Deviation of a Variable from Grouped Data
-For the following data set, approximate the sample standard deviation of distances from work (in miles) . $\begin{array}{c|c}\text { Distance(miles) } & \text { Frequency } \\\hline 8-11 & 15 \\12-15 & 21 \\16-19 & 36 \\20-23 & 39 \\24-27 & 23\end{array}$

• A) \(4.9\) miles
• B) \(24.5\) miles
• C) \(5.2\) miles
• D) \(24.3\) miles

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