Researchers have created every possible "knockout" line in yeast. each line has exactly one gene deleted and all the other genes present (steinmetz et al. 2002). the growth rate - how fast the number of cells increases per hour - of each of these yeast lines has also been measured, expressed as a multiple of the growth rate of the wild type that has all the genes present. in other words, a growth rate greater than 1 means that a given knockout line grows faster than the wild type, whereas a growth rate less than 1 means it grows more slowly. below is the growth rate of a random sample of knockout lines:
0.8, 0.98, 0.72, 1, 0.82, 0.63, 0.63, 0.75, 1.02, 0.97, 0.86
what is the standard deviation of growth rate this sample of yeast lines (answer to 3 decimals)?