Suppose, a ciothing store wanted to analyze whether there exists a relationship between the way the customers pay their bills after shopping and theprice of the clothing items and for this purpose, they conducted a survey based on their recent 200 sales. The data is compiled in a following table:Payment wayPrice of the itemsTotalCashDebit CardCredit CardLess than $10053AВMore than $100DE3797Total200F9148a. What is the probability that a customer used a debit card to clear the bill?Answer in exact fraction, or rounded to at least 4 decimal placesb. What is the probability that a customer spent less than $100 in the clothing store?Answer in exact fraction, or rounded to at least 4 decimal placesc. What is the probability that a customer used cash to pay more than $100 after shopping?Answer in exact fraction, or rounded to at least 4 decimal placesActivad. What is the probability that a customer used debit card to pay less than $100 after shopping?Answer in exact fraction, or rounded to at least 4 decimal placesGo to S

Given data is Cash Debit card Credit card Total Less than $100 53 A B c More than $100 D E…

Answered: Suppose, a ciothing store wanted to…

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 marketing company has randomly surveyed 204 men who watch professional sports. The men were separated according to their educational level (college degree or not) and whether they preferred the NBA or the National Football League (NFL). The results of the survey are shown to the right. Complete parts a through d. Sports Preference NBA College Degree 36 No College O Degree 58 NFL 19 91 a. What is the probability that a randomly selected survey participant prefers the NFL? (Round to four decimal places as needed.) b. What is the probability that a randomly selected survey participant has a college degree and prefers the NBA? (Round to four decimal places as needed.) c. Suppose a survey participant is randomly selected and you are told that he has a college degree. What is the probability that this man prefers the NFL? (Round to four decimal places as needed.) d. Is a survey participant's preference for the NBA independent of having a college degree? No. The two events are not…
L9Q1.The following table shows the mode of travel and the probability of risk. Choose the best mode of travel for a safe trip.
Jenny works for a local brewing company. She and her team mates try to estimate the Hong Kong consumers’ preference on their beer brand compared to other imported ones. They performed a survey asking if the respondent prefers the company’s brand the most or not. Based on this survey result, they want to decide how much money the company needs to invest on brand promotions in the coming year. This is an important decision for the company, and the management wants to have the probability that the sample proportion p is +/- 3% from the actual proportion p to be very high (i.e., at least 99%). In this case, what is the desirable sample size n for the following two cases? Give the answer in the form of: at least ___ x100 samples. Case i. When the actual proportion is 50%. Case ii. When the actual proportion is 10%. Explain why the sample sizes required to achieve the same accuracy in the two cases are different.
A survey conducted on students of XYZ University reported the number of male and female students and their majors. The data obtained are given in the following table. Science Politics Total Men 109 13 122 Women 10 23 33 Total 119 36 155 a. What is the probability that a student majors in Science?b. What is the probability that a student majoring in Science of or being a male?c. What is the probability that a student majoring in Sciences and is given that he is a man?
At a particular college 19 percent of the students major in business. All business majors are required to take a statistics course. Of the students not majoring in business, 31 percent of them still have to take a statistics course. What is the probability that a student has to take a statistics course at this particular college? Type your answer as a decimal to 4 decimal places.
The following table indicates the weather changes at a particular location. For example, the day following a clear day, there is a 40% chance that the weather will be clear, a 40% chance that it will be cloudy and a 20% chance that it will be rainy. What is the probability that the weather two days after it rains will be clear? Answer in whole number See attached photo
A researcher wanted to study the commuting habits of community college students and faculty. He wanted to compare their mode of transportation to the college. He asked if they walk, bike, or drive to campus. The following table represents the data that was collected. Walks to campus Bikes to campus Drives to campus Total Students 70 22 78 170 Faculty 5 4 23 32 Total 75 26 101 202 A. Find the probability that a randomly selected member of faculty walks to campus. B. If you are randomly selecting a person from those who bike to campus, what is the probability that you will select a student. C. Perform a Test of Independence to determine if commuting habits are dependent on being a student or a faculty.
It is widely known that wage levels and real estate prices follow, i.e. that in areas where salaries are generally high, so are real estate prices and vice versa. The table below shows the distribution of people according to their salary level and the real estate price where they live. a. According to the table, what percentage of people have a high salary level? b.What is the probability that a person with a low salary lives in an area with high real estate prices? c. What is the probability that a person living in an area with high real estate prices has a low salary?
The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions,assume these values are not changing from year to year, and that the population of the United States is 312 millionpeople. Cause of Death in US Cause Number of deaths Passenger car occupant 13,100 Motorcycle driver 4,500 Tornado 553 Skydiving 56 What is the probability that you died as a passenger car occupant last year?
The table below summarizes a survey involving the relationship between living arrangements and grade point average for a group of students. If a student is selected randomly from this group, what is the probability that the student lives off campus? On Campus At home Apartment Totals Below 2.5 97 38 44 179 2.5 to 3.5 66 26 22 114 Over 3.5 18 5 8 31 Totals 181 69 74 324

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