58 A barber measures hair lengths for a random sample of 100 of his customers and gathers data on the growth rates of their hair The data are plotted in the histogram below 0 96 104 1 12 1 20 1 28 1 36 Growth rate cm month Which of the values below is closest to the standard deviation of the 100 values A 0 008 B 0 01 C 0 03 D 0 08 F 1 16