A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 Refer to Exhibit 3-3. The range is 1 2 10 12
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The range is the difference between the highest and lowest values in a set of data. In this case, the data set is 3, 5, 12, 3, 2. Show more…
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Exhibit 3-2 A researcher has collected the following sample data. The mean of the sample is 5 3 5 12 3 2 Refer to Exhibit 3-2 The coefficient of variation is 81.24% 72.66% 330% 264%
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The given values represent data for a sample. Find the variance and the standard deviation based on this sample. $\begin{array}{|c|c|}\hline x_{i} & {f_{i}} \\ \hline 33 & {3} \\ {34} & {1} \\ {35} & {4} \\ {36} & {6} \\ {37} & {5} \\ {38} & {11} \\ {39} & {6} \\ \hline\end{array}$
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