The Scottish Executive, Analytical Services Division Transport Statistics, compiles data on motorcycle accidents. During one year, the numbers of motorcycle accidents in Scotland were tabulated by day of the week for built-up roads and non€“built-up roads and resulted in the following data.

a. Without doing any calculations, make an educated guess at which of the two data sets, built-up or non built-up, has the greater variation.
b. Find the range and sample standard deviation of each of the two data sets. Compare your results here to the educated guess that you made in part (a).

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Day Built-up Non built-up Monday Tuesday Wednesday 76 Thursday Friday Saturday Sunday 70 58 59 53 56 94 102 100 98 103 85 69