In a survey on consumer spending methods, the following results were obtained. Payment Method Checks Cash Credit cards Debit/ATM cards Other Transactions, % 37 11 20 17 15 If a transaction tracked in this survey is selected at random, what is the probability that the transaction was paid for by each of the following? (a) with a credit card or with a debit/ATM card (b) with cash or some method other than with a check, a credit card, or a debit/ATM car

In a survey on consumer spending methods, the following results were obtained. Payment Method Checks Cash Credit cards Debit/ATM cards Other Transactions, % 37 11 20 17 15 If a transaction tracked in this survey is selected at random, what is the probability that the transaction was paid for by each of the following? (a) with a credit card or with a debit/ATM card (b) with cash or some method other than with a check, a credit card, or a debit/ATM car

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Payment Method	Checks	Cash	Credit cards	Debit/ATM cards	Other
Transactions, %	37	11	20	17	15

Similar questions

The U.S. Coast Guard maintains a database of the number, source, and location of oil spills in the U.S. navigable and territorial waters. The following is a probability distribution for location of oil spill events. [Source: Statistical Abstract of the United States.] Location Probability Atlantic Ocean 0.008 Pacific Ocean 0.037 Gulf of Mexico 0.233 Great Lakes 0.020 Other Lakes 0.002 Rivers and canals 0.366 Bays and sounds 0.146 Harbors 0.161 Other 0.027 If an oil spill is selected at random from the database, what is the probability: The oil spill occurred in an ocean? The oil spill occurred in a lake or harbor? The oil spill did not occur in a lake, ocean, river, or canal?
e) Which drink was the most preferred and what is the probability of preferring that drink? 2. Consider the following return rates for items purchased: Retail return rates Shoppers return items bought online at a far higher rate Online purchases Return rates by category (both online and in-store) About 30% Auto parts 21% Housewares 12.3% Apparel 10.5% Footwear 9.6% Sporting goods 9.3% Beauty 5.2% Source: WSJ a) If Sally sells 27 pairs of shoes during the month, what is the probability Sally has exactly 4 pairs of shoes returned? b) What is the probability that Sally has less than4 pairs of those shoes returned? c) Tom works at Napa and sells auto parts. Tom sold 18 auto parts last week. What is the probability that Tom gets more than 4 of those parts returned? d) What is the probability that Tom between 2 and 5 of those parts returned?
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Q. No. 3. A famous football team plays 60% of games at night and 40% during the day. The team wins 50% of the night games and 70% of the day games. According to print media reports, the team won yesterday. i. What is the probability the game was played during the day? ii. What is the probability the game was played at night?
21. A survey involving 600 Democrats, 400 Republicans and 200 Independents asked the question: "Do you favor or oppose eliminating taxes on dividends paid to shareholders?" The following results were obtained: Answer Democrats, % Republicans, % Independents, % Favor 29 66 48 Орpose 71 34 52 What is the probability that a person selected at random from this survey answered "favor"?
In a survey of 2500 adults 18 year old and older conducted in 2019 adults 18 years old and older, the following question was asked : Is your family income keeping pace with the cost of living ? The results of the survey follow : Falling Staying Don't Answer Increasing behind even know faster Respondents 900 1020 460 120 Determine the probability distribution associated with these data.
A police officer randomly selected 586 police records of larceny thefts. The accompanying data represent the number of offenses for various types of larceny thefts. (a) Construct a probability model for type of larceny theft. (b) Are coin-operated machine larcenies unusual? (c) Are larcenies from buildings unusual? (a) Complete the table below. Type of Larceny Theft Pocket picking Purse snatching Shoplifting From motor vehicles Motor vehicle accessories Probability Bicycles From buildings From coin-operated machines (Round to three decimal places as needed.) (b) Choose the correct answer below. Data table Type of Larceny Theft Pocket picking Purse snatching Shoplifting From motor vehicles Motor vehicle accessories Bicycles From buildings From coin-operated machines Print OA. Yes, because P(coin-operated machine) 0.05. OC. Yes, because P(larcenies from buildings) <0.5. O D. No, because the probability of an unusual event is 0. Number of Offenses 7 8 126 202 82 50 102 9 Done - X
The following table gives the percentage of students enrolled in one mathematics courses at a university. The college level transfer courses are College Algebra, Statistics, and Liberal Arts Math. PreAlgebra 5% Statistics Elementary Liberal Arts Algebra Math Intermediate Algebra %0% College Algebra 25% prials vas get A student who is taking only one mathematics course is selected. What is the probability a student is taking transfer level math? (Enter without a percent sign)
A bank recently discovered that approximately 1.6% of all commercial loans issued by the bank become delinquent. Norah, the bank's vice president of operations, is stunned by this discovery. In order to be prepared for the next board meeting, she investigates the matter by randomly selecting 554 commercial loans from the bank’s database and reviewing each loan. What is the probability that at least 12 of the loans in the sample are delinquent? Use Excel to find the probability. Round your answer to four decimal places.
In a survey on consumer spending methods, the following results were obtained. Payment Method Checks Cash Credit cards Debit/ATM cards Other Transactions, % 38 11 20 18 13 If a transaction tracked in this survey is selected at random, what is the probability that the transaction was paid for by each of the following? (a) with a credit card or with a debit/ATM card(b) with cash or some method other than with a check, a credit card, or a debit/ATM card
Review the definitions and examples of probability of events and their complementary events. A survey of 451 Salinas residents showed 389 voted in a recent election. When making a selection from the 451 surveyed, what is the probability the person voted in a recent election? When making a selection from the 451 surveyed, what is the probability the person did not vote in a recent election?
Virtually any process can be improved by use of statistics, including the law. A much publicized case that involved a debate about probability was the Collins case, which began in 1964. An incident of purse snatching in the Los Angeles area led to the arrest of Michael and Janet Collins. At their trial, an "expert" presented the probabilities listed in table below on characteristics possessed by a couple seen running from the crime scene: Characteristics Probability Man with beard 1/10 Blond woman 1/4 1/10 Yellow car Woman with ponytail Man with moustache Interracial couple 1/10 1/3 1/1000 The chance that a couple had all these characteristics together is 1 in 12 million. Because the Collinses had these characteristics, the Collinses must be guilty. Do yo see any problem with this line of reasoning? Hint: The question of interest is not "what is the probability of finding a couple with these characteristics?" because one such couple has been found (the Collinses), the question is "what…