Consider the following sample data values. 18 5 15 7 4 17 10 6 8 a) Calculate the range. b) Calculate the sample variance. c) Calculate the sample standard deviation.
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Step 1
The highest value is 18 and the lowest value is 4, so the range is: Range = 18 - 4 = 14 b) To calculate the sample variance, we need to first find the mean of the data set. We can do this by adding up all the values and dividing by the number of values: Mean = Show more…
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