A survey was conducted by a website on which online music channels subscribers use on a regular basis. The following information summarizes the answers. 12 listened to​ rap, heavy​ metal, and alternative rock. 20 listened to rap and heavy metal. 18 listened to heavy metal and alternative rock. 17 listened to rap and alternative rock. 27 listened to rap. 35 listened to heavy metal. 38 listened to alternative rock. 21 listened to none of these three channels.   a. How many people were​ surveyed? b. How many people listened to either rap or alternative​ rock? c. How many listened to heavy metal​ only?

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A: From the given information, The proportion of Country A is 33%. The sample size for country A is…

Q: Which one of the following brand of cars has more difference in sales between Branch A and Branch B?…

A: We want to find the more different in sales between Branch A and Branch B

Q: Suppose you are an expert on the fashion industry and wish to gather information to compare the…

A:

Q: Suppose you are an expert on the fashion industry and wish to gather information to compare the…

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A:

Q: Four hundred twenty-five people were surveyed as they left the FSU-Virginia basketball game at the…

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A: Given: Students at the University of Alabama use the following modes of transportation: bike, car,…

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A:

Q: A consumer watchdog organization is concerned about credit card debt. A survey of 10 young adults…

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Q: A survey among the workers in a large manufacturing company was taken, in order to find out from…

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Q: In a poll of 556 human resource​ professionals, 42.3​% said that body piercings and tattoos were big…

A: Number of human resource​ professionals (n) = 556 Probability of success (p) = 42.3% = 0.423

Q: a. Complete the​ two-way table summarizing the reviews.

A:

Q: A survey of Hoosiers found that 47% are Pacers fans, 34% are Colts fans, and 35% are Pacers fans but…

A: Solution: Let A be the event that Hoosiers are Pacers fans and B be the event that Hoosiers are…

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A:

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A: GIVEN

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Q: A department store surveyed 428 shoppers, and the following information was obtained: 215 shoppers…

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Q: A department store surveyed 428 shoppers, and the following information was obtained: 215 shoppers…

A: As per bartleby guidelines only the first three subparts are to be solved. Please upload other parts…

Q: Compute χ2STAT. Is it significant at α=0.01​?

A: Given,   A B C Total 1 10 25 55 90 2 30 35 45 110 Total 40 60 100 200

Q: 7. A survey among the workers in a large manufacturing company was taken, in order to find out from…

A:

Q: Chapter 11 An online dating company was working on a study comparing high school teachers and…

A:

Q: The figure to the right shows the results of a survey in which 1013 adults from Country A, 1001…

A:

Q: A survey of 90 customers was taken at Barnes & Noble regarding the types of books purchased. The…

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A:

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A:

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Q: 2. A broadcasting agency finds that, of its 190 clients, 120 use Television, 115 use Radio and 105…

A:

Q: A milk company surveyed some of their customers to find out how many people like chocolate milk…

A: This question can be solved using the concept of set theory and contingency table

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A:

Q: a. In order to be invited to the college world cup, teams must earn a score in the top 15% of all…

A: here given,  mean = 133.75  standard deviation  =  50.24 Y  =winning  score

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.