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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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A $150 eReader comes with a warranty from an electronics business that covers theft (T) and accidental damage (AD) . Due to the high expense of repairing an eReader, it is more cost-effective for the business to provide the customer a complete refund to go toward another one. There is a 5.1% possibility that an AD (Accidenal Claim) claim will be made in any given year. Assume there can only be one claim made (not one of each type).Customers who report an eReader as stolen will get a reimbursement for 80% of the item's full price. A Theft (T) claim is likely to be submitted 3.5% of the time in any given year.What is the anticipated financial benefit or loss for the firm on each contract if the warrantee costs $15.95 for a year?(NOTE: Keep in mind that regardless of whether a claim is made, the consumer will pay for the warranty upfront.)
i) Suppose that four persons working in a factory are given the job of stamping expiry date on the packet of buns. Person A, who stamps 20% of packets, fails to stamp the expiry date once in every 200 packets. Person B who stamps 60% of packets, fails to stamp the expiry date once in every 100 packets. Person C who stamps 15% of packets, fails to stamp the expiry date once in every 90 packets and Person D who stamps 5% of packets, fails to stamp the expiry date once in every 200 packets. If a buyer complains that her packet of buns does not show the expiry date, what is the probability that,a) It was Person A who failed to stamp?b) It was stamped by Person B or C?c) What is the probability that a packet bought shows an expiry date and it wasnot stamped by B?
i) Suppose that four persons working in a factory are given the job of stamping expiry date on the packet of buns. Person A, who stamps 20% of packets, fails to stamp the expiry date once in every 200 packets. Person B who stamps 60% of packets, fails to stamp the expiry date once in every 100 packets. Person C who stamps 15% of packets, fails to stamp the expiry date once in every 90 packets and Person D who stamps 5% of packets, fails to stamp the expiry date once in every 200 packets. If a buyer complains that her packet of buns does not show the expiry date, what is the probability that,a) It was Person A who failed to stamp?b) It was stamped by Person B or C?c) What is the probability that a packet bought shows an expiry date and it was not stamped by B? ii) a) A quiz assignment of 150 questions, each question with 5 possible answers, was given to a student of which only 1 answer is correct. The student knows answers of 80 questions. What is the approximate probability that a…
Acity's Registrar’s Office answers 60% of the calls from students immediately. Of the 40% calls that are not answeredimmediately, 75% or the caller receive a follow up call the same day, and 25% receive a follow up call the next day.Of those students whose calls are answered immediately, 80% have schedule related issues. Of those students whowere followed up the same day, 60% have schedule related issues. Of those students who were followed up the nextday, 40% have schedule related issues. Given that a student has schedule related issues, what is the probability that thecall is answered immediately?
In how many ways can the television director of Exer-cise 38 fill the six time slots for commercials if there are three different sponsors and the commercial for each is tobe shown twice?
The records of a computer retail store show that out of the 25 customers who purchased a desktop computer last month, all but 5 also purchased a service plan that extends the warranty for an extra year. Out of the 50 customers who purchased a notebook computer last month, all but 5 purchased the same service plan. Fill in the blanks below to make the most reasonable statement possible. Last month, customers of the store who purchased ▼(Choose one:desktop/ ) computers were less likely to purchase the service plan. That is because % did not purchase the service plan, whereas only % of the customers who bought ▼(Choose one) computers did not purchase the service plan.
Suppose there are 10 students participating in a workshop that meets every day of a five-day work week. Each student must present a poster in exactly one of the days of the workshop, and every day of the workshop should have at least one poster presentation. If nk denotes the number of posters presented in day k of the workshop, what is the number of possible quintuples (n1,n2,n3,n4,n5)? I ll rate accordingly.
In a recent study, 50 males used a new weight-loss supplement, and all but 14 of them experienced weight loss after two weeks. In the same study, 100females used the same supplement, and all but 14 of them experienced weight loss after two weeks. Fill in the blanks below to make the most reasonable statement possible. The new weight-loss supplement was less effective on ▼(Choose one) in the study. That is because only % of them lost weight after two weeks, whereas % of the ▼(Choose one) lost weight after two weeks.
A television director has to schedule commercials during 6 time slots allocated to commercialsduring the national telecast of the first period of a Montréal Canadiens hockey game.(a) In how many ordered ways can the television director schedule 6 different commercialsduring the 6 time slots?(b) In how many ways can the television director fill the 6 time slots allocated tocommercials, if there are 4 different commercials, of which a given one is to be shown 3times while each of the others is to be shown once?(c) As in (b) except the commercial shown three times can’t be shown before or after itself(i.e., not consecutively). How many ways can the television director fill the 6 time slots?
A box has 3white(W) balls,2 black (B) balls and 4 red(R) balls. Two balls were drawn successively from this box (i) with replacement/ (ii) without replacement. Let X=the number of white balls drawn and let Y=the number of black balls drawn.
7.-The 11colleges of interest to a high school senior include 4that are expensive (tuition more than $20,000 per year), 4that are far from home (more than 200 miles away), and 2that are both expensive and far from home. a. If the student decides to select a college that s not expensive and within 200 miles of home, how many selections are possible? b. If the student decides to attend a college that is not expensive and within 200 miles from home during his first two years of college, and then will transfer to a college that is not expensive but is far from home, how many selections of two colleges are possible?
1. Due to the high incidence of crime, a company is giving its employees new and secured access to the company. Instead of leaving the doors open, they are installing a card system. To open the door, employees must insert a card into a slot. If a green light comes on, it is okay to turn the handle and open the door; if a yellow light comes on it indicates the door is locked from inside and you cannot enter. Suppose that 90% of the time when the card is inserted, the door should open because it is not locked from the inside. When the door should open, the system makes errors 2% of the time. That is, the green light will appear 98% of the time. When the door should not open, the system makes errors 5% of the time (green light appears). Suppose you inserted the card and the light is green, what is the probability the door will open?

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