EEC 338 Probability and Statistics CA 2026

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EEC 338: Test for EEC338 Probability and Statistics, Department of Electrical and Electronic Engineering, College of Technology, University of Buea, 7 May 2026. Exercise 1: letter-arrangement and grouped-arrangement counting problems, and an inclusion-exclusion analysis of three overlapping language classes (probability of no class, exactly one class, and at least one of two randomly chosen students taking a class). Exercise 2: a Bayes' theorem problem identifying which of three machines a defective bolt most likely came from, and a discrete random variable (total insurance payout to two independent clients) with its probability mass function, expectation, variance and standard deviation derived from first principles.