A lake contains 4 distinct types of fish. Suppose that each fish caught is equally likely to be any one of these types. Let Y denote the number of fish that need be caught to obtain at least one of each type.
a. Give an interval
b. Using the one-sided Chebyshev inequality, how many fish need we plan on catching so as to be at least 90 percent certain of obtaining at least one of each type?
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
A First Course in Probability (10th Edition)
- Each time a component is tested, the trial is a success (S) or failure (F). Suppose the component is tested repeatedly until a success occurs on three consecutive trials. Let Y denote the number of trials necessary to achieve this. List all outcomes corresponding to the five smallest possible values of Y. (Enter your answers in set notation.) what is the answer for Y=7. I have {SFFFSSS,SSFFSSS,FFFFSSS,FSSFSSS,FSFFSSS. Are there more?arrow_forwardWhich of the following pairs of sets are equivalent or equal?arrow_forwardWhich of the following sets are equal?arrow_forward
- A bowl contains 8 red balls and 8 blue balls. A woman selects balls at random without looking at them. (a) How many balls must she select (minimum) to sure of having at least three blue balls? (b) How many balls must she select (minimum) to be sure of having at least three balls of the same color? Submit answerarrow_forwardSuppose you have sets A and B with |A| = 4 and |B| = 20. What is the largest possible value for An B|? What is the smallest possible value for An B? What are the possible values for |A U B? ≤ |AUB| ≤arrow_forwardA student takes a true-false test that has 13 questions and guesses randomly at each answer. Let X be the number of questions answered correctly. Find P(11 or more)arrow_forward
- An interval scale has all of the following properties, except a.numbers are assigned to objects or sets of objects b.has an absolute zero c.numbers are arranged in some type of array or order d.the distance, or space, between numbers is assumed to be equal e.all of the above applyarrow_forwardMatch each item in the left column with the MOST appropriate choice in the right column. v {1, 2, 3, 4, ., 25)} countably infinite .... A. Q* N 2 В. c. finite v NxN D. There is no correct match. v [-1,1] E. uncountably infinite v Q-Q*-Q F. The empty set.arrow_forwardK In a recent year, a research organization found that 298 of the 451 respondents who reported earning less than $30,000 per year said they were social networking users. At the other end of the income scale, 342 of the 561 respondents reporting earnings of $75,000 or more were social networking users. Let any difference refer to subtracting high-income values from low-income values. Complete parts a through d below Assume that any necessary assumptions and conditions are satisfied a) Find the proportions of each income group who are social networking users. The proportion of the low-income group who are social networking users is 6608 The proportion of the high-income group who are social networking users is 6096 (Round to four decimal places as needed.) b) What is the difference in proportions? 0512 (Round to four decimal places as needed.) c) What is the standard error of the difference? 0304 (Round to four decimal places as needed.) d) Find a 95% confidence interval for the…arrow_forward
- See picture for problem.arrow_forwardA student takes a true-false test that has 6 questions and guesses randomly at each answer. Let X be the number of questions answered correctly. Find P(Fewer than 4)arrow_forwardA casino game consists of selecting two balls, without replacement, from an urn containing 4 balls numbered 1 through 4. The amount that you win (in dollars) is the minimum of the numbers on the two balls. How much should be charged to play this game if the casino wants to make $0.30, on average, each time the game is played?arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage