05_Preparation_Assignment_B.docx

# 05_Preparation_Assignment_B.docx - Lesson 5 Normal...

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Lesson 5: Normal Distribution Preparation Directions: Please fill in Part I as you study the Reading Assignment. Once you finish the reading, complete the questions on Part II. You may use your notes, the key, and the help videos. Be sure to take this completed assignment to your group meeting where you can ask and help answer questions on this assignment. Problems Part I: Use the information in the reading assignment to complete these questions. 1. Classify each of the following batting averages as either "unusual" or "not unusual." Use the z-score to make this determination. a 0.19 – unusual b 0.225 – not unusual c 0.325 – slightly unusual d 0.335 – unusual 2. Find the probability that a randomly selected professional baseball player will have a batting average that is greater than 0.335. .0336 3. Provide a brief description of a Normal Density Curve. Describe the shape and the properties. Bell shaped and symmetric, area under curve equal to 1 4. In the following z-score formula, z = x μ σ please state what each symbol stands for.

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