A swim coach is considering 8 swimmers as possible members of a 3-person relay team.a. How many different choices of 3 swimmers does the coach have?type your answer...b. Given that the relay team's performance may depend on what order the athletes swim in, how many different teams could the coach create?type your answer...

Given data 8 swimmers are possible members of 3 person relay team. nCr = n!r!(n-r)!nPr =…

Answered: A swim coach is considering 8 swimmers…

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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In the Summer Olympics, there were eight runners in the final of the men's 100 meter dash. This race included two runners representing USA. How many possible outcomes could we have seen on the podium that didn't include either of the two Americans? That is to say the podium has no USA runners (six of the runners are non-USA runners). Remember the podium represents an ORDERED finish.
7. A survey of 120 people was conducted to determine how many people watched 3 different television networks. The results were as follows: n(ABC) = 55 n(NBC)= 30 n(CBS) = 40 n(ABC and CBS) = 10 n(ABC and NBC) = 12 n(NBC and CBS) = 8 n(NBC and CBS and ABC) = 5 a. How many watched only NBC? b. How many of the 120 people didn't watch any of the three networks?
Suppose a survey conducted in 2012 asked a group of adults from a certain country whether they drink seltzer water. Of the 3,062 people who responded, 22.8% said they drink seltzer water. Complete parts a through d. b. Identify the population. What is the population? A. All of the adults in the world B. The 22.8% of respondents in the survey who reported they drink seltzer water C. All of the adults in the particular country D. The 3,062 people who responded to the survey c. Identify the sample statistic reported. What is the sample statistic reported? A. The proportion of respondents who reported they do not drink seltzer water B. The number of people who said they drink seltzer water C. The proportion of respondents who reported they drink seltzer water The 3,062 people who responded to the survey d. Identify the population parameter of interest. What is the population parameter of interest? O A. The proportion of all people in the world who drink seltzer water B. The number of…
In how many ways could 5 chocolate bars be choosen from a display of 10 chocolate bars? a. 50 b. 31 c. 252 d. 500
The soccer team has 20 members and will elect P, VP, T and S. In how many ways can this be done?
2. Molly really enjoyed country music. After listening one afternoon to her favorite station foran hour, she had heard 25 songs. All but 1 song were about either truck drivers, being in love,hound-dog owners, or some combination of the three. She noted the following information: Allof the truck drivers were in love. Three-fourths of the truck drivers were not hound-dogowners. There were six hound-dog owners who were in love. Of the hound-dog owners whowere not truck drivers, half of them were in love. Eighty percent of all the songs concernedpeople in love. How many songs concerned people who were in love but were neither truckdrivers nor hound-dog owners?
There are 10 boys and 6 girls. How many ways are there of forming a group that consists of either 3 boys or 2 girls? a. 200 b. 135 c. 1800 d. 120
A movie survey (shown below) is used at the entrance of a movie theatre to survey people coming in. Answer Questions A, B, C at the bottom of the page. MOVIE SURVEY 1) Name: 2) What is your favourite genre of movie? Choose one. O Western O Romance O Documentary 3) From the list below, indicate which movies you wouldn't recommend to your best friend. Deadpool Batman vs. Superman: Dawn of Justice Ghostbustery Zootopia The Secret Life of Pets Sully 4) Name two famous movie lead-actors: and 5) Don't you agree that Suicide Squad is the greatest action movie in film history? O Yes O No 6) Do you agree that movie ratings are confusing and the government of Canada should make the revision of these ratings its primary concern? 7) Do you believe that the parking situation at movie theatres is problematic or difficult because of the lack of spaces and the multitude of other businesses in close proximity to the theatre or do you believe that the parking situation at movie theatres is absolutely…
A survey of 50 students showed that 25 were taking psychology, 20 were taking math, and 8 were taking neither. The number taking both was: 45 50 53 3 None of these
If a bag contains 4 blue marbles 6 red marbles and 9 green marbles then the number of ways that 3 marbles of the same color can be selected from the bag is : a.18 b. 969 c. 649 d.108
Each accountant at a large accounting firm was classified according to accountant level (junior or senior) and method of transportation to work (walk, bus, drive alone, or carpool). The responses of the 320 accountants at the firm are summarized in the table. Junior Senior Total Walk 25 3 28 Bus 87 12 99 Drive alone 96 25 121 Carpool 52 20 72 Total 260 60 320 What proportion of the accountants at the firm are at the senior level and carpool to work? 20 (A) 60 20 (B) 72 (C) 20 320 112 (D) 320 132 (E) 320
Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5

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