Question 1: Using values of MIN, MAX, MEAN and MEDIAN, can you describe in words what the histogram will look like? 
 MTB > set 'traffic.data' c1
 MTB > describe c1
 
                 N     MEAN   MEDIAN   STDEV 
 C1             49    5.306    5.200   1.275
The histogram will be centered around 5, give-or-take 1.2. Since the mean is larger than the median, the histogram will be slightly skewed to the right.