Question: Questions 1-4 plus the step c and d i can't figure out. de your name on your assignment. Chapter 3 Homework Problems 1. Scores: 1,

Questions 1-4 plus the step c and d i can't figure

Questions 1-4 plus the step c and d i can't figure out.

out. de your name on your assignment. Chapter 3 Homework Problems 1.

de your name on your assignment. Chapter 3 Homework Problems 1. Scores: 1, 2, 3, 3, 4, 2, 2, 3, 2, 1 Calculate the following: (XX x 3) + (EX2)/2 2. Scores: 1, 2, 3, 3, 4, 2, 2, 3, 2, 1 Calculate the following: [(EX) + EX ]/2 3. Here are data from a recent study: 3, 4, 2, 3, 4, 2, 2, 2, 1, 2. Calculate the following from the data: (EX x 10)/5 Calculate the following: [(EX)-(EX)/5] x 2 4. Assume that you are developing norms for the following three groups. Sample 1 Sample 2 Sample 3 N 25 50 40 EX 750 1400 1280 EX 25000 40000 41000 Mean 30 28 32 S 10 4 1 What is the mean for the total of samples 1, 2, and 3? What is the standard deviation for the total of samples 1, 2, and 3? Step C - Additional standard deviation practice problems are available in the Chapter 3 Learning Module. Step D - Visit the following links should you need additional assistance with fundamental statistics concepts

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