The table below shows the noon-time temperatures (in \(^{\circ}F\)) recorded in a city over one week.
| Day | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|
| Temperature | 66 | 78 | 75 | 69 | 78 | 77 | 70 |
If \(m\) is the median temperature, \(f\) is the temperature that occurs most often (the mode), and \(a\) is the average (arithmetic mean) of the seven temperatures, which of the following gives the correct order of \(m\), \(f\) and \(a\)?