Below is the question

Exercise 2: Table 2 Sample values for a Tungsten deposit (%W) 22.00 16.80 17.10 11.10 14.20 11.60 13.50 16.40 13.10 16.90 26.00 15.60 11.50 11.30 13.23 18.17 12.97 8.77 5.93 5.14 11.53 12.97 13.13 11.23 6.93 11.87 10.27 11.97 10.30 11.90 a) Plot the Histogram of the samples b) Calculate the mean of the samples c) Calculate the variance of the samples d) Calculate the standard deviation of the samples e) Calculate the interquartile range of the samples