Questions 33-40 use the following scenario. A researcher examines a collection of water samples from19 different pools. The researcher has determined that the probability that the chlorine level in a pool iswithin a safe limit is 37% for any swimming pool that the researcher studies.33. What is the probability that 5 of the swimming pools have safe chlorine levels?A. 39.56%C. 24.73%B. 22.96%D. 10.99%34. What is the probability that 7 or more of the swimming pools have safe chlorine levels?A. 39.56%B. 22.96%C. 24.73%D. 10.99%35. What is the probability that three or less of the swimming pools have unsafe chlorine levels?A. 39.56%B. 22.96%C. 24.73%D. 10.99%36. What is the probability that between 5 and 9 of the swimming pools have unsafe chlorine levels?A. 39.56%B. 22.96%C. 24.73%D. 10.99%38. What is expected number of pools that have a safe level of chlorine?A. 39.56%B. 22.96%C. 24.73%37. What is the probability that more than 10 of the swimming pools have safe chlorine levels?A. 39.56%B. 22.96%C. 24.73%D. 10.99%39. What is the standard deviation in the number of pools that have a safe chlorine level?A. 39.56%B. 22.96%C. 24.73%D. 10.99%D. 10.99%40. Approximately how many of the sampled swimming pools would you expect to have a safe level ofchlorine?A. 39.56%B. 22.96%C. 24.73%D. 10.99%

AS per guidelines i have calculated 3 subparts plz repost for remaining parts . here , n = no of…

Answered: 33. What is the probability that 5 of…

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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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.
2. The probability that a person has a negative side effect from a medication is .08.Suppose you treat 12 people. Assume they are independent.a. What is the probability that exactly 2 of them have a negative side effect?
5. Big babies: The Centers for Disease Control and Prevention reports that 25% of baby boys 6-8 months old in the United States weigh more than 20 pounds. A sample of 150 babies is studied. a. Approximate the probability that more than 40 weigh more than 20 pounds. b. Approximate the probability that 35 or fewer weigh more than 20 pounds. c. Approximate the probability that the number who weigh more than 20 pounds is G 20
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Suppose a math class contains 37 students. There are 19 females (six of whom speak Spanish) and 18 males (five of whom speak Spanish). Give all answers as decimals to at least two decimal places.1. What is the probability that a randomly selected student speaks Spanish, given that the student is female? 2. What is the probability that a randomly selected student does not speak Spanish, given that the student is male? 3. What percent of Spanish speaking students are male? 4. If someone does not speak Spanish what is the probability they are female?
36.
A certain virus affects 0.7% of the population. A test used to detect the virus in a person is positive 88% of the time if the person has the virus (true positive) and 13% of the time if the person does not have the virus (false positive) Fill out the remainder of the following table and use it to answer the two questions below based on a total sample of 100,000 people. a. Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest hundredth of a percent and do not include a percent sign. b. Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest hundredth of a percent and do not include a percent sign.
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