'Part A: Here are the numerical summaries (mean and standard deviation) for each variable in the data set, x1,x2,x3,Y1,y2,y3. mean sd 54.26734 16.76896 142 54 6 16.76639 142 54 16.76514 1 47 26 3028 # 47 26.93269 47. 83225 26.93540 142 Comment on what you notice when comparing the sample means and the sample standard deviations'