Answer and then please show work and explain. So I can learn, Thank you.

unit Off- lifei offe, did flow its Illedil Changes. Q2. Suppose I have three variables(X1, X2, and X3) and their scores were listed in the table (treat it as sample). X1 X2 X3 2 2 9 10 18 5 6 10 16 8 14 1). please calculate their means, SS, variance and standard deviation for X1, X2, and X3. 2) The scores of X2 equals scores of X1-1; Scores of X3 equals scores of X1-2. a) When we add one to each score of X1 (which will become X2), how this operation will influence the mean, and standard deviation? b) When we multiple 2 to each score of X1 (which will become X3), how this multiplication will change the mean and standard deviation