Exercise 1

The following list is the number of times male Swiss doctors operated at a certain hospital in a certain year:

{20, 44, 50, 86, 25, 31, 59, 27, 37, 36, 85, 28, 25, 33, 34}

1. Calculate the mean number of operations.
2. Calculate the median number of operations.
3. Can we consider this set of data reasonably symmetric, left skewed or right skewed? Justify your argument using values from the previous parts of this exercise.
4. Suppose we expanded this data set to 850 cases.Between which two ordered case numbers would we find our median?