Decide whether the exercise involves permutations or combinations, and then solve the problem.Marbles are being drawn without replacement from a bag containing 10 marbles.(a) How many samples of 3 marbles can be drawn?(b) How many samples of 4 marbles can be drawn?(c) If the bag contains 2 yellow, 3 white, and 5 blue marbles, how many samples of 2 marbles can be drawn in which all marbles are blueDoes the problem involve permutations or combinations?O PermutationsO Combinations(a) How many samples of 3 marbles can be drawn?samples(b) How many samples of 4 marbles can be drawn?samples(c) If the bag contains 2 yellow, 3 white, and 5 blue marbles, how many samples of 2 marbles can be drawn in which all marbles are blue?samples

Answered: Image /qna-images/answer/ab64f4c0-fc44-4a4a-b9dc-8bfef7292873.jpg

Answered: Decide whether the exercise involves…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A teacher wants to interview a random sample of 6 students from their class of 25 students. How many samples (or groups) of 6 students can the teacher interview? Is this a combination or permutation? How many different possible samples are there?
For a school project, 3 students need to produce a sample of students at their school. Which of the following methods leads to a random sample? a Asking each of their friends to a a name 3 friends. b Writing all the names of students they know on a list and picking. c Numbering all the students at the school and produce a sample from a random list of numbers. d Calling for volunteers on social media.
In order to conduct an experiment, 5 subjects are randomly selected from a group of 43 subjects. How many different groups of 5 subjects are possible.
In order to conduct an experiment, 4 subjects are randomly selected from a group of 47 subjects. How many different groups of 4 subjects are possible? The number of possible different groups is. (Type a whole number.)
A bag of candy contains 5 different types of colored candies; red, green, blue, yellow, and orange. According to the manufacturer, bags should contain an equal number of each color. Students in a statistics class decided to use a chi-square procedure to test the manufacturer’s claim. They opened a bag of candy and recorded the number of candies of each color. The results are shown in the following table. Red Green Blue Yellow Orange 17 24 20 25 14 Which color contributes most to the chi-square test statistic? Red A Green B Blue C Yellow D Orange
In a large population, 55% of the people have been vaccinated. If 5 people are randomly vaccinated what is the probablility that at least one of them has been vaccinated?
A friend of mine is giving a dinner party. His current wine supply includes 7 bottles of zinfandel, 11 of merlot, and 13 of cabernet (he only drinks red wine), all from different wineries. (a) If he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to do this? (b) If 6 bottles of wine are to be randomly selected from the 31 for serving, how many ways are there to do this? (c) If 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety? (d) If 6 bottles are randomly selected, what is the probability that this results in two bottles of each variety being chosen? (Round your answer to three decimal places.) (e) If 6 bottles are randomly selected, what is the probability that all of them are the same variety? (Round your answer to three decimal places.)
Decide whether the exercise involves permutations or combinations, and then solve the problem. A bag contains 11 black, 1 red, and 5 yellow jelly beans; you take 5 at random. How many samples are possible in which the jelly beans are the following. (a) all black? (b) all red? (c) all yellow? (d) 4 black and 1 red? (e) 4 black and 1 yellow? (f) 4 yellow and 1 black? (g) 4 red and 1 yellow? Does the problem involve permutations or combinations? Permutations Combinations (a) In how many ways can 5 jelly beans be chosen so all are black? samples Enter your answer in the answer box and then click Check Answer. Check Answe Clear All 6. parts remaining P Pearson ere to search hp
A small company is interested in determining how many of its employees are still paying off student loans. However, the company doesn't want to allocate the resources required to survey every single employee. So they decide to randomly sample 2 individuals from each department using a simple random sample approach. There are a total of 6 individuals that work in the human resources department. How many possible distinct combinations of 2 individuals could be selected from the human resources department?
A farmer grows
In a survey, it was found that 80% of adults operate the flusher of toilets in public restrooms with their foot. (a) If 300 adults are randomly selected, how many would we expect to flush toilets in public restrooms with their foot? (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? (a) We would expect (Type a whole number.) adults to flush toilets in public restrooms with their foot. (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? Choose the correct answer below. O A. Yes, because 255 is greater than u + 2o. O B. No, because 255 is greater than u + 20. O C. Yes, because 255 is between u - 20 and u+ 20. O D. No, because 255 is less than u- 20. O E. No, because 255 is between u -20 and u+ 20.
In a class there are 4 students who are 19 years old and obtained 80 pints in the midterm. There are 6 students who are 19 years old and obtained 50 pints in the midterm. There are 6 students who are 20 years old and obtained 80 pints in the midterm. There are n students who are 20 years old and obtained 50 pints in the midterm. There are no other students. We randomly pick a student in the class, let their age be X and their score by Y. If we are given that X, Y are independent random variables, then compute n.

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