7. Suppose that 30% of Canadians play hockey. Suppose furtherthat 10% of people in the usa and 1% of people in mexicoplay hockey, and that for the rest of North Americancountries and territories the probability of playing hockeyis zero.If a randomly selected North American person playshockey,ded. Please start earlya. what is the probability that he is from canada?b. what is the probability that he is from the USA?Note that Canada has 6% of the population in NorthAmerica, the USA has 57% and Mexico has 21%.

Answered: Image /qna-images/answer/d2aec5de-8f14-40a1-a61b-939b270d6048.jpg

Answered: 7. Suppose that 30% of Canadians play…

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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American Airlines' flights from Chicago to Atlanta are on time 90 % of the time. Suppose 9 flights are randomly selected, and the number on-time flights is recorded.Round answers to 3 significant figures.The probability that exactly 8 flights are on time is = The probability that at most 8 flights are on time is =
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 12% of voters are Independent. A survey asked 23 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? Probability = B. What is the probability that fewer than 5 are Independent? Probability = C. What is the probability that more than 2 people are Independent? Probability =
8. Suppose that 20% of people have dogs. If two people are randomly chosen, what is the probability that they both have a dog? Write your answer as a percent and round to the nearest hundredth of a percent.There is a % chance the two randomly chosen people both have dogs.
Suppose that 57% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal (to at least 3 places) or fraction
Suppose 22% of students at a certain university are out of state students. A professor takes a random sample of 50 students. Let X = the number of out of state students in the sample. a. how many students are expected to be out of state? by how much does this vary? b. what is the probability that 10 will be out of state? c. what is the probability that 10 or fewer will be out of state? d. what is the probability that fewer than 10 will be out of state?
Suppose 33.3% of high school students eat pizza and 42% drink soda. If 17.3% of high school students eat pizza and drink soda, what is the probability that a randomly chosen high student will either eat pizza, drink soda, or both?
At a local college, 32% of students are enrolled in a statistics course and 45% of students are enrolled in an accounting course. Also, 16% of students are enrolled in both statistics and accounting 1. What is the probability that a randomly selected student is in statistics or accounting. 2. What is the probability that a randomly selected student is in accounting, given that they are in statistics. 3. What is the probability that a randomly selected accounting student is in statistics. 4. What is the probability that a randomly selected student is not in either course.
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 10% of voters are Independent. A survey asked 26 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? B. What is the probability that fewer than 6 are Independent? C. What is the probability that more than 3 people are Independent?
Suppose that 40% of people own dogs. If you pick two people at random, what is the probability that they both own a dog?Give your answer as a decimal rounded to 4 places.
Suppose that 68% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal rounded to 4 places.
36. Vaccine For a specific group of subjects, there is a 5% chance of influenza (“flu”). When 80 subjects were treated with a vaccine, only one of them presented with influenza. b. Find the probability of exactly one subject experiencing influenza, assuming that the vaccine has no effect. c. Find the probability of one or fewer subjects experiencing influenza, assuming that the vaccine has no effect.
Suppose that 35% of people own dogs. If you pick two people at random, what is the probability that they both own a dog?Give your answer as a decimal (to at least 3 places) or fraction

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