25% of the guests staying in a hotel business are German, 30% are Russian, and 22% are Ukrainian tourists. 23% of the tourists are citizens of other countries. Looking at the distribution of those complaining about the hotel's SPA services, 1% of German tourists, 3% of Russian tourists and 2.5% of Ukrainian tourists complained. In addition, it was determined that 1.5% of the tourists with other nationalities complained. Hotel PR promises to book one of the complaining tourists at all costs for the next year. What is the probability that the selected tourist who complains is German?

25% of the guests staying in a hotel business are German, 30% are Russian, and 22% are Ukrainian tourists. 23% of the tourists are citizens of other countries. Looking at the distribution of those complaining about the hotel's SPA services, 1% of German tourists, 3% of Russian tourists and 2.5% of Ukrainian tourists complained. In addition, it was determined that 1.5% of the tourists with other nationalities complained. Hotel PR promises to book one of the complaining tourists at all costs for the next year. What is the probability that the selected tourist who complains is German?

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Description: 25% of the guests staying in a hotel business are German, 30% are Russian, and 22% are Ukrainian tourists. 23% of the tourists are citizens of other countries. Looking at the distribution of those complaining about the hotel's SPA services, 1% of Ger

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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5. Suppose that 68% of all adults think that airplanes would be safer places if airline passengers were banned from carrying on board any luggage, including purses, computers, and briefcases. An opinion poll plans to ask an SRS of 1023 adults about airplane safety. The proportion of the sample who think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases, will vary if we take many samples from this same population. The sampling distribution of the sample proportion is approximately Normal with mean 0.68 and standard deviation about 0.015. Sketch this Normal curve and use it to answer the following question. Round to nearest tenth percent. What is the probability of getting a sample in which more than 70% think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases?
a.4/15 b.2/10 c.3/10 d.1/15 e.1/10
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