1.
To identify the sampling method and population.
1.
Answer to Problem 4E
The population consist of all individuals from each of the 50 statesand the sampling method is random sampling method.
Explanation of Solution
Given information:
“A survey was conducted to find the percent of Americans who enjoy camping. The surveyor randomly selected 20 individuals from each of the 50 states and asked, “Do you enjoy, greatly enjoy, or not enjoy camping in the woods, where the air is fresh and clean?”
The population consist of all individuals from each of the 50 states. Because the surveyor uses the rule “interview randomly selected 20 individuals”, the sample is a random sample.
2.
To describe whether the sample chosen was representative of the population.
2.
Answer to Problem 4E
The sample chosen was not a representative of the population.
Explanation of Solution
Given information:
“A survey was conducted to find the percent of Americans who enjoy camping. The surveyor randomly selected 20 individuals from each of the 50 states and asked, “Do you enjoy, greatly enjoy, or not enjoy camping in the woods, where the air is fresh and clean?”
The sample chosen was not a representative of the population because the surveyor randomly selected 20 individuals from each of the 50 states which is not enough to represent 50 states population.
3.
To explain whether the question is biased or not.
3.
Answer to Problem 4E
The question is biased as it suggest that the individual should enjoy the camping where the air is fresh and clean.
Explanation of Solution
Given information:
The question is “Do you enjoy, greatly enjoy, or not enjoy camping in the woods, where the air is fresh and clean?”
The question “Do you enjoy, greatly enjoy, or not enjoy camping in the woods, where the air is fresh and clean?” is biased because it suggest that one should enjoy the camping where the air is fresh and clean.
c
To explain:the affect the results of the survey
c
Answer to Problem 4E
The question is biased as it is already suggesting one should like camping in fresh and clean air.
Explanation of Solution
Given information:
The question is biased as it is already suggesting one should like camping in fresh and clean air.
Chapter 11 Solutions
EBK PRE-ALGEBRA
Additional Math Textbook Solutions
A First Course in Probability (10th Edition)
Introductory Statistics
College Algebra with Modeling & Visualization (5th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Algebra and Trigonometry (6th Edition)
Elementary Statistics: Picturing the World (7th Edition)
- 4. Solve the system of equations and express your solution using vectors. 2x1 +5x2+x3 + 3x4 = 9 -x2+x3 + x4 = 1 -x1-6x2+3x3 + 2x4 = -1arrow_forward3. Simplify the matrix expression A(A-B) - (A+B)B-2(A - B)2 + (A + B) 2arrow_forward[2 pts] 1. Let A = [. 1 -1 0 -343 and B = 05 5 -7 304 Compute (7A - 3B) - 4(2A - B).arrow_forward
- 20 2. Let A = = [ -2 0 1 3 ] and B = 2 3 -1 2 For each of the following, calculate the product or indicate why it is undefined: (a) AB (b) BAarrow_forwardAnswer the number questions with the following answers +/- 2 sqrt(2) +/- i sqrt(6) (-3 +/-3 i sqrt(3))/4 +/-1 +/- sqrt(6) +/- 2/3 sqrt(3) 4 -3 +/- 3 i sqrt(3)arrow_forward1 Matching 10 points Factor and Solve 1)x3-216 0, x = {6,[B]} 2) 16x3 = 54 x-[3/2,[D]] 3)x4x2-42 0 x= [ +/-isqrt(7), [F] } 4)x+3-13-9x x=[+/-1.[H]] 5)x38x2+16x=0, x = {0,[K}} 6) 2x6-10x-48x2-0 x-[0, [M], +/-isqrt(3)) 7) 3x+2x²-8 x = {+/-i sqrt(2), {Q}} 8) 5x³-3x²+32x=2x+18 x = {3/5, [S]} [B] [D] [F] [H] [K] [M] [Q] +/-2 sqrt(2) +/- i sqrt(6) (-3+/-3 i sqrt(3))/4 +/- 1 +/-sqrt(6) +/- 2/3 sqrt(3) 4 -3 +/- 3 i sqrt(3) [S]arrow_forward
- The only problems I need help with ae the last 8 ones, Thanksarrow_forwardGraph without using the calculator y-1 = | x+4 |arrow_forward9:43 AS く Akbar © Printed in the United States 15) Scale: 1 cmal unit on both axes .ill 64% The graph above shows a straight line QT intersecting the y-axis at T. i State the co-ordinates of T. ii Calculate the gradient of QT 16) iii Determine the equation of QT. A (-1, 9) ||| i L Г (5 marks)arrow_forward
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education