PLEASE SHOW WORK ALL STEPS AND HELP CORRECT IT PLEASE AND THANK YOU.

c) Which group is more consistent when it comes to their point scores? Explain using any statistics observed. Your Answer: a. mean =74 x=(,53 57,,8185,94) n= 5 Ex =53+57+81+85+94=87| 22 = 532 + 572 + 812 + 852 + 942 = 28680 _ Ex _ 370 _ _ 2 b) standard deviation = W =18.0278 a) correct b) I have no idea where you got this from. It is not in the book nor in my notes. What formula are you using? no answer for part c c) Which group is more consistent when it comes to their point scores? Explain using any statistics observed. Your Answer: a. mean =74 x= (53,57,81,85,94) n=5 2x =53+57+81+85+94=87| 22 = 532 + 572 + 812 + 852 + 942 = 28680 _ Ex 370 mean T _ _5 _ 74 _ Question 16 3 / 3 PtS 16. The average point score for 5 students on an Economics exam was 71 with a standard deviation of 6.8 points. (8 pts a- 2pts, b-4pts, c-2 pts) All work done by hand, not by the calculator. The following are point scores of 5 different students on the exam. 53, 57, 81, 85, 94 a) Find the mean. b) Find the standard deviation. I have provided a table as a visual to help organize your work on your scratch paper. Organizing your work on scratch paper will help to type in the work so that I understand what you are doing. Show your steps