Calculate the standard deviation for Data Set 1, assuming that it is a sample of the population. Data Set 1 54 67 60 68 40 39 42 29 39 57 52 16 54 10 65 46 46 25 19 61 11 31 65 54 66 Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 23.45 b 19.89 c 12.56 d 18.29