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Problem#1: A multiple choice test contains 25 questions, each wi four answers. Assume a student just guesses on each question. (a) Wh is the probability that the student answers more than 20 questic correctly? (b) What is the probability the student answers less thar questions correctly?

Problem#1: A multiple choice test contains 25 questions, each wi four answers. Assume a student just guesses on each question. (a) Wh is the probability that the student answers more than 20 questic correctly? (b) What is the probability the student answers less thar questions correctly?

MATLAB: An Introduction with Applications
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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Problem#1: A multiple choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than 5 questions correctly? Problem#2: An installation technician for a specialized communication system is dispatched to a city only when three or more orders have been placed. Suppose orders follow a Poisson distribution with a mean of 0.25 per week for a city with a population of 100,000 and suppose population of probability that a technician is required after a one-week period? (b) If you are the first one in the city to place an order, what is the your city contains a 800,000. (a) What is the probability that you have to wait more than two weeks from the time you place your order until a technician is dispatched?
Transcribed Image Text:Problem#1: A multiple choice test contains 25 questions, each with four answers. Assume a student just guesses on each question. (a) What is the probability that the student answers more than 20 questions correctly? (b) What is the probability the student answers less than 5 questions correctly? Problem#2: An installation technician for a specialized communication system is dispatched to a city only when three or more orders have been placed. Suppose orders follow a Poisson distribution with a mean of 0.25 per week for a city with a population of 100,000 and suppose population of probability that a technician is required after a one-week period? (b) If you are the first one in the city to place an order, what is the your city contains a 800,000. (a) What is the probability that you have to wait more than two weeks from the time you place your order until a technician is dispatched?
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