(2) Find the standard deviation for each of the two data sets: Mike Dave x- mean (deviation) (deviation) x- mean (deviation) (deviation) 24 23 19 19 24 26 20 24 25 20 21 21 25 23 21 24 26 25 22 29 26 24 22 22 27 25 23 24 27 27 23 23 28 24 24 28 29 24 24 25 Total Total Standard Deviation = Standard Deviation = (3) Apply the range rule of thumb to estimate the standard deviation of each of the two data sets. (4) What do you think about each of the methods used above to measure variation