Finite Mathematics (11th Edition)
11th Edition
ISBN: 9780321979438
Author: Margaret L. Lial, Raymond N. Greenwell, Nathan P. Ritchey
Publisher: PEARSON
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Chapter 9.1, Problem 35E
To determine
Whether the provided method to get a random sample is correct or not.
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(x)=2x-x2
2
a=2, b = 1/2, C=0
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F(x)=ax 2 + bx + c
x=
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WORKSHEET 1
Solve the following four problems on a separate sheet. Fully justify your answers to
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earn full credit.
1. Let f(x) = 2x-
1x2
2
(a) Rewrite this quadratic function in standard form: f(x) = ax² + bx + c
and indicate the values of the coefficients: a, b and c.
(b) Find the vertex V, focus F, focal width, directrix D, and the axis of
symmetry for the graph of y = f(x).
(c) Plot a graph of y = f(x) and indicate all quantities found in part (b)
on your graph.
(d) Specify the domain and range of the function f.
OUR
2. Let g(x) = f(x) u(x) where f is the quadratic function from problem 1
and u is the unit step function:
u(x) = { 0
1 if x ≥0
0 if x<0
y = u(x)
0
(a) Write a piecewise formula for the function g.
(b) Sketch a graph of y = g(x).
(c) Indicate the domain and range of the function g.
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where u is the unit step function defined in problem 2.
3. Let…
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Q7. A business office orders paper supplies from one of three vendors, V₁, V2, or V3.
Orders are to be placed on two successive days, one order per day. Thus, (V2, V3)
might denote that vendor V2 gets the order on the first day and vendor V3 gets the
order on the second day.
(a) List the sample points in this experiment of ordering paper on two successive
days.
(b) Assume the vendors are selected at random each day and assign a probability
to each sample point.
(c) Let A denote the event that the same vendor gets both orders and B the event
that V2 gets at least one order. Find P(A), P(B), P(AUB), and P(An B) by
summing the probabilities of the sample points in these events.
Chapter 9 Solutions
Finite Mathematics (11th Edition)
Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 - For Exercises 1-4, do the following: (a) Group the...Ch. 9.1 -
For Exercises 1-4, do the following:
(a) Group...Ch. 9.1 - How does a frequency polygon differ from a...Ch. 9.1 - Discuss the advantages and disadvantages of the...Ch. 9.1 - Prob. 7ECh. 9.1 - Prob. 8ECh. 9.1 - Prob. 9ECh. 9.1 - Prob. 10E
Ch. 9.1 - Prob. 11ECh. 9.1 -
Find the mean for each list of numbers.
12....Ch. 9.1 - Prob. 13ECh. 9.1 - Prob. 14ECh. 9.1 - Prob. 15ECh. 9.1 - Prob. 16ECh. 9.1 - Prob. 17ECh. 9.1 - Prob. 18ECh. 9.1 - Prob. 19ECh. 9.1 - Prob. 20ECh. 9.1 - Prob. 21ECh. 9.1 - Prob. 22ECh. 9.1 - Prob. 23ECh. 9.1 - Use a graphing calculator or spreadsheet to...Ch. 9.1 -
Find the mode or modes for each list of...Ch. 9.1 - Prob. 26ECh. 9.1 - Prob. 27ECh. 9.1 - Prob. 28ECh. 9.1 - Prob. 29ECh. 9.1 - Prob. 30ECh. 9.1 - When is the median the most appropriate measure of...Ch. 9.1 - Prob. 32ECh. 9.1 - Prob. 33ECh. 9.1 - Prob. 34ECh. 9.1 - Prob. 35ECh. 9.1 - Prob. 36ECh. 9.1 - Prob. 37ECh. 9.1 -
38. Salaries The total compensation (in millions...Ch. 9.1 -
39. Household Income The total income for...Ch. 9.1 - Household Income The total income for white...Ch. 9.1 - Prob. 41ECh. 9.1 -
42. Housing Prices An Erie, PA, newspaper...Ch. 9.1 - Prob. 43ECh. 9.1 - Pandas The size of the home ranges (in square...Ch. 9.1 - Blood Types The number of recognized blood types...Ch. 9.1 -
46. Temperature The following table gives the...Ch. 9.1 - Prob. 47ECh. 9.1 - Prob. 48ECh. 9.1 - Prob. 49ECh. 9.1 - Prob. 50ECh. 9.1 -
51. Baseball Salaries The Major League Baseball...Ch. 9.1 - Prob. 52ECh. 9.2 - How are the variance and the standard deviation...Ch. 9.2 - Prob. 2ECh. 9.2 - Prob. 3ECh. 9.2 - Prob. 4ECh. 9.2 - Prob. 5ECh. 9.2 - Prob. 6ECh. 9.2 -
Find the range and standard deviation for each...Ch. 9.2 - Prob. 8ECh. 9.2 - Prob. 9ECh. 9.2 - Prob. 10ECh. 9.2 - Prob. 11ECh. 9.2 - Prob. 12ECh. 9.2 - Prob. 13ECh. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - Prob. 16ECh. 9.2 - Prob. 17ECh. 9.2 - Prob. 18ECh. 9.2 - Prob. 19ECh. 9.2 - Prob. 20ECh. 9.2 - Prob. 21ECh. 9.2 - Prob. 22ECh. 9.2 - Prob. 23ECh. 9.2 - Prob. 24ECh. 9.2 - Prob. 25ECh. 9.2 - Sales Promotion The Quaker Oats Company conducted...Ch. 9.2 - Prob. 27ECh. 9.2 - Prob. 28ECh. 9.2 -
29. Washer Thickness An assembly-line machine...Ch. 9.2 - Unemployment The number of unemployed workers in...Ch. 9.2 - Prob. 31ECh. 9.2 - Prob. 32ECh. 9.2 - v
33. Home-Based Workers Because of advancements...Ch. 9.2 - Prob. 34ECh. 9.2 - Prob. 35ECh. 9.2 - Prob. 36ECh. 9.2 - Prob. 37ECh. 9.2 - Prob. 38ECh. 9.2 -
39. Baseball Salaries The table in Exercise 51,...Ch. 9.2 -
40. Box Office Receipts The table below lists...Ch. 9.2 - Prob. 41ECh. 9.3 - Prob. 1ECh. 9.3 - Prob. 2ECh. 9.3 - Prob. 3ECh. 9.3 - Prob. 4ECh. 9.3 - Prob. 5ECh. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Prob. 8ECh. 9.3 - Prob. 9ECh. 9.3 -
Find the percent of the total area under the...Ch. 9.3 - Prob. 11ECh. 9.3 -
Find the percent of the total area under the...Ch. 9.3 - Prob. 13ECh. 9.3 - Find the percent of the total area under the...Ch. 9.3 - Prob. 15ECh. 9.3 -
Find a z-score satisfying the following...Ch. 9.3 - Prob. 17ECh. 9.3 -
Find a z-score satisfying the following...Ch. 9.3 - Prob. 19ECh. 9.3 - Prob. 20ECh. 9.3 - Prob. 21ECh. 9.3 - In all of the following applications, assume the...Ch. 9.3 - Prob. 23ECh. 9.3 -
In all of the following applications, assume the...Ch. 9.3 - Prob. 25ECh. 9.3 - In all of the following applications, assume the...Ch. 9.3 - Prob. 27ECh. 9.3 - Prob. 28ECh. 9.3 - Prob. 29ECh. 9.3 - Quality Control A box of oatmeal must contain 16...Ch. 9.3 - Prob. 31ECh. 9.3 -
Quality Control A box of oatmeal must contain 16...Ch. 9.3 - Prob. 33ECh. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 -
36. Between 1600 and 2000 g
Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Quality Control The chickens at Colonel Thompson's...Ch. 9.3 - Annual Bonuses Salespeople of a large corporation...Ch. 9.3 - Grocery Bills At the Discount Market, the average...Ch. 9.3 -
41. Quality Control A machine that fills quart...Ch. 9.3 -
42. Quality Control A machine produces bolls with...Ch. 9.3 - Prob. 43ECh. 9.3 - Prob. 44ECh. 9.3 - Prob. 45ECh. 9.3 - Prob. 46ECh. 9.3 - Prob. 47ECh. 9.3 - Prob. 48ECh. 9.3 - Prob. 49ECh. 9.3 - Prob. 50ECh. 9.3 - Prob. 51ECh. 9.3 - Prob. 52ECh. 9.3 - Prob. 53ECh. 9.3 - Prob. 54ECh. 9.3 - Prob. 55ECh. 9.3 - Prob. 56ECh. 9.3 - Prob. 57ECh. 9.3 - Prob. 58ECh. 9.3 - Prob. 59ECh. 9.3 - Prob. 60ECh. 9.3 - Prob. 61ECh. 9.3 - Prob. 62ECh. 9.4 - Prob. 1ECh. 9.4 - Prob. 2ECh. 9.4 - Prob. 3ECh. 9.4 -
Suppose 16 coins are tossed. Find the...Ch. 9.4 - Prob. 5ECh. 9.4 - Prob. 6ECh. 9.4 - Prob. 7ECh. 9.4 - Prob. 8ECh. 9.4 - Prob. 9ECh. 9.4 - Prob. 10ECh. 9.4 - Prob. 11ECh. 9.4 - Prob. 12ECh. 9.4 - Prob. 13ECh. 9.4 - Prob. 14ECh. 9.4 - Prob. 15ECh. 9.4 - Prob. 16ECh. 9.4 - Prob. 17ECh. 9.4 - Prob. 18ECh. 9.4 - Prob. 19ECh. 9.4 - Prob. 20ECh. 9.4 - Prob. 21ECh. 9.4 - Prob. 22ECh. 9.4 - Prob. 23ECh. 9.4 - Prob. 24ECh. 9.4 - Prob. 25ECh. 9.4 - Prob. 26ECh. 9.4 - Prob. 27ECh. 9.4 - Prob. 28ECh. 9.4 - Prob. 29ECh. 9.4 - Prob. 30ECh. 9.4 - Prob. 31ECh. 9.4 - Prob. 32ECh. 9.4 - Prob. 33ECh. 9.4 - Hole in One In the 1989 U.S. Open, four golfers...Ch. 9 -
1. Check the Court's calculation of 29...Ch. 9 - Prob. 2EACh. 9 - Prob. 3EACh. 9 - Prob. 4EACh. 9 - Prob. 5EACh. 9 - Prob. 1RECh. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - Prob. 9RECh. 9 - Prob. 10RECh. 9 - Prob. 11RECh. 9 - Prob. 12RECh. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - Prob. 16RECh. 9 - Prob. 17RECh. 9 - Prob. 18RECh. 9 - Prob. 19RECh. 9 - Prob. 20RECh. 9 - Prob. 21RECh. 9 -
Find the median and the mode (or modes) for each...Ch. 9 -
Find the median and the mode (or modes) for each...Ch. 9 - Prob. 24RECh. 9 - Prob. 25RECh. 9 -
26. What is meant by the range of a...Ch. 9 - Prob. 27RECh. 9 - Prob. 28RECh. 9 - Prob. 29RECh. 9 - Prob. 30RECh. 9 - Prob. 31RECh. 9 - Prob. 32RECh. 9 - Prob. 33RECh. 9 - Prob. 34RECh. 9 - Prob. 35RECh. 9 - Prob. 36RECh. 9 - Prob. 37RECh. 9 - Prob. 38RECh. 9 - Prob. 39RECh. 9 - Prob. 40RECh. 9 - Prob. 41RECh. 9 - Prob. 42RECh. 9 - Prob. 43RECh. 9 - Prob. 44RECh. 9 - Prob. 45RECh. 9 - Prob. 46RECh. 9 - Prob. 47RECh. 9 - Prob. 48RECh. 9 - Prob. 49RECh. 9 - Prob. 50RECh. 9 -
51. Use the normal distribution to find the...Ch. 9 - Prob. 52RECh. 9 - Prob. 53RECh. 9 - Prob. 54RECh. 9 - Prob. 55RECh. 9 - Prob. 56RECh. 9 - Prob. 57RECh. 9 - Prob. 58RECh. 9 -
59. Broadway In the survey described in Exercise...
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