1. The following data give the lengths of time (in weeks) taken to find a full-time job 18 civil engineering majors who graduated in 2005 from a small college. 6 12 21 15 8 4 6 13 16 30 7 24 11 48 15 10 14 14 25 a) Find the average length of time taken to find a full-time job The average length in time is b) Find the standard deviation​