A list of data points recording daily travel distance from a survey: 26, 33, 65, 28, 34, 55, 25, 44, 50, 36, 26, 37, 43, 62, 35, 38, 45, 32, 28, 34. Compute sample variance.
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Step 1
List the data points. 2. Count the number of data points (n). 3. Calculate the sample mean ($\bar{x}$). 4. For each data point, calculate the squared difference from the mean ($ (x_i - \bar{x})^2 $). 5. Sum these squared differences. 6. Divide the sum by (n-1) to Show more…
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