Here is a sample data set that appears to be nearly normal (as suggested by the histogram). 39.3 34.6 55 44.2 42.9 48.3 26.8 34.3 47 53.2 35.6 22.2 38.8 45.1 36.7 39.8 30.2 53.2 31.1 51.8 38 38.4 39.8 42.7 31.4 40 25 36.7 34.3 34.1 39 38.2 21.4 37.6 47 53.6 29.3 30.2 36.9 42 44.2 52.4 38.2 49 46.3 28.2 28.2 38.4 58.6 28.8 26 42.2 33.3 55.4 14 12 10 Frequency 20 25 30 35 40 45 50 55 60 length (cm) What is the mean of this data set? (Report answer using the rules suggested in class: 1 more d.p. than the data.) M =