MA260C Assignment 5 Nicole Davis AC1703436.docx

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Running Head: Assignment 05 Nicole Davis AC1703436 MA260 Statistical Analysis I Assignment 05 08/31/2017 Assignment 05 Nicole Davis Ashworth College
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Assignment 05 Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to use correct English, spelling, and grammar. Refer to the "Assignment Format" page located on the Course Home page for specific format requirements. NOTE: Show your work in the problems. 1. Compute the mean and variance of the following discrete probability distribution. x P(x) 2 .50 8 .30 10 .20 Work: Mean µ X i P x 2 0.5 8 0.3 10 0.2 5.40 Variance X 2 i P x µ 2 2 2 0.5 8 2 0.3 10 2 0.2 5.40 2 12.04 Answers: Mean = 5.4 and Variance is 12.04 2. The Computer Systems Department has eight faculty, six of whom are tenured.
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