A sample of drivers recorded the distance of their morning commute below: 34 12 20 10 6 11 15 19 23 48 17 15 14 8 3 12

1. Find the mean and standard deviation.

2. Use part 1 to determine if any of the above values are "unusual".

3. Use the data above to construct a frequency distribution table with 6 classes and a class width of 9, beginning with a lower class limit of 1 for the first class.