12

Welcome to Strings_n_88keys!!!!!
And hey, since it looks like your start date is the same as Captain Atom, we now have a mode.
Mode - 6 days (mode is the number that appears most frequently in the group of numbers and since 6 is the only number that repeats that becomes the mode for the group.)

**2015 Goals**

*Run 1,800 miles*

*Do 10 minutes of core work every day*

*10 mile goal: 1:12:00 (Black Cat 10 miler - March)*

Strings, I went for a run and now your answer makes more sense. However, it is problematic. Here is why: it is impossible ever to sample a complete population. Every dataset comes from the representatives from the overall population who have chosen to participate (or who were recruited). So all data are samples of the population.

12