Study Guide: Unit 1 (STAT 18, Spring 2024) 11. Students should be able to interpret and use formulas that include summation notation. Given a small dataset and a formula, students should be able to calculate the solution to the formula, using the appropriate order of operations (Summation Notation). Participant Value x x x X a. Based on the data above, calculate E x, showing all your work. b. Based on the data above, calculate E(x - 1) , showing all your work. c. Based on the data above, calculate _ x - 1, showing all your work. d. Based on the data above, calculate _ x , showing all your work. 12. Students should be able to calculate the mean of a small dataset and should be able to identify how that mean would/would not change if every observation in the dataset were changed by a constant. (The Mean) a. What is the formula for the mean of a dataset? Show the formula in summation notation and label/explain each part of it (identify what each letter or symbol refers to or tells you to do)