In a certain large town, 15% of High School students who play in the school marching band in any year were recommended by their Middle School band teacher. Of those who joined the marching band because they had been recommended, 90% are very good at what they do. Of those who joined the marching band and weren't recommended, only 60% are very good. A random High School marching band student is chosen. The student plays in front of experts who are qualified to judge a student as very good or not. For the purpose of this question, suppose the percentages in the sample match all percentages stated above. Find each probability and do not round answers unless told to: a) The High School student was recommended and was judged to be very good b) The student was very good, given that they were actually recommended C) The student was very good

In a certain large town, 15% of High School students who play in the school marching band in any year were recommended by their Middle School band teacher. Of those who joined the marching band because they had been recommended, 90% are very good at what they do. Of those who joined the marching band and weren't recommended, only 60% are very good. A random High School marching band student is chosen. The student plays in front of experts who are qualified to judge a student as very good or not. For the purpose of this question, suppose the percentages in the sample match all percentages stated above. Find each probability and do not round answers unless told to: a) The High School student was recommended and was judged to be very good b) The student was very good, given that they were actually recommended C) The student was very good

Name: In a certain large town, 15% of High School students who play in the
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: In a certain large town, 15% of High School students who play in the school marching band in any year were recommended by their Middle School band teacher.Of those who joined the marching band because they had been recommended, 90% are very good at

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...

See similar textbooks

Similar questions

Nationally, 61% of American own American cars, 26% of Americans own Asian cars, and the remaing Americans own non-Asian foreign cars. A survey of 205 people in California finds that 54% own American cars, 31% own Asian cars, and the remaining own non-Asian foreign cars. When testing (at the 10% level of significance) whether the proportions in California are the same as the national proportions, what is the test statistic (please round your answer to 3 decimal places)
Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following 5 customers and determining whether or not they purchase any merchandise. What is the number of sample points in the experiment?
The city of Raleigh has 10200 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 400 randomly selected registered voters was conducted. 197 said they'd vote for Brown, 176 said they'd vote for Feliz, and 27 were undecided.Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent.197400 This sample statistic suggests that we might expect of the 10200 registered voters to vote for Brown.
A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
What are the applications of Biostatistics, Give at least two examples of your own relevant to pharmacy and clinical health science. And also Define the Sample and population, give at least two examples of your own.
Suppose 20% of the students on campus smoke. You select two students at random. In what percentage of samples will both students be smokers?
To collect data about the number of students in your high school who have a part time job, which of the following methods is most likely to lead to a sample that is the most representative of the students in your school? Interview all the girls in the school. Ask the principal. Interview all the students in 9th grade. Assign each student in the school a number and randomly select students to be interviewed. Interview all the students who are on the sports teams in the school.
The city of Raleigh has 10500 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 500 randomly selected registered voters was conducted. 158 said they'd vote for Brown, 293 said they'd vote for Feliz, and 49 were undecided.Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Note: The proportion should be a fraction or decimal, not a percent.
In a series of studies, Sebastian Deri and his colleagues (2017) asked multiple groups about the number of friend groups they had and how often they attended different social events. They then asked participants how they thought their own numbers compared to other people's: Did participants see themselves as less social, the same as, or more social than others? In the first study, the researchers reported that: "Three hundred four participants from Amazon's Mechanical Turk (150 women; Mage = 37.1; 78% White, 10% Black, and 6% Asian) completed a survey in exchange for modest payment" (p. 860). What do the researchers mean by "Amazon's Mechanical Turk" with respect to their sample of participants? O A. An archival data set that already exists and from which researchers can use data O B. An online tool that researchers can use to recruit people to participate in research in exchange for a small payment O C. An e-book sold by Amazon that includes contact information for possible…