(3) You take an exam that contains 20 multiple-choice questions. Each question has 4 possibleoptions. You know the answer to 10 questions, but you have no idea about the other 10 questionsso you choose answers randomly. Your score X on the exam is the total number of correctanswers. Find the PMF of X. What is P(X > 15)?The number of customers arriving at a grocery store is a Poisson random variable. On average 10customers arrive per hour. Let X be the number of customers arriving from 10am to 11 : 30am.What is P(10 < X < 15)?(4)

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Answered: You take an exam that contains 20…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You take an exam that contains 20 multiple-choice questions. Each question has 4 possible options. You know the answer to 10 questions, but you have no idea about the other 10 questions so you choose answers randomly. Your score X on the exam is the total number of correct answers. Find the PMF of X. What is P(X > 15)?

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