The lengths of time, in minutes, that 10 patients waited in a doctor's office before receiving treatment were recorded as follows: 5, 11, 9, 5, 10, 15. 6, 10, 5, and 10. Treating the data as a random...

The lengths of time, in minutes, that 10 patients waited in a doctor's office before receiving treatment were recorded as follows: 5, 11, 9, 5, 10, 15. 6, 10, 5, and 10. Treating the data as a random sample, find
(a) the mean;

(b) the median;

(c) the mode.