The following data give the number of shoplifters apprehended during each of the past 8 weeks at a large department store. 7, 1, 0,8, 3, 1, 5,1, 2,6, 1, 1 a. Find the mean for these data. Calculate the deviations of the data values from the mean. Is the sum of these deviations zero? b. Calculate the range, variance, and standard deviation.