For each of the given the data sets below, calculate the mean and standard deviation. (a) 41, 42, 59, 49, 46, 55 mean = 48.7 standard deviation = 7.2 (b) 3.4, 2.5, 4.6, 2, 3.9, 2.7 mean = 3.1833 standard deviation = 4.618 (c) - 14, -9, 14, 6, 5 mean = .4 standard deviation = 11.5