
Mathematics: A Practical Odyssey
8th Edition
ISBN: 9781305104174
Author: David B. Johnson, Thomas A. Mowry
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4.4, Problem 30E
Are all distributions of data
Support your answer with an example.
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
why the answer is 3 and 10?
1
Hannah wants to have concrete stairs for
her backdoor. How much concrete will be
needed to build the stairs?
70 cm
30 cm
15 cm
10 cm
10 cm
20 cm
45 cm
cm³
GIF
GIF/
2
3
4
qwe
asdf
5
6
自
yu
ty u
8
ghjk
9
P
Z X
C
cv b
vbnm ×
PS
9 Two films are shown on screen A and screen B at a cinema each evening. The numbers
of people viewing the films on 12 consecutive evenings are shown in the back-to-back
stem-and-leaf diagram.
Screen A (12) Screen B (12)
8
037
34
7 6 4 0 534
74 1645678
92 71689
Key: 116|4 represents 61 viewers for A and 64 viewers for B
A second stem-and-leaf diagram (with rows of the same width as the previous diagram)
is drawn showing the total number of people viewing films at the cinema on each of
these 12 evenings. Find the least and greatest possible number of rows that this second
diagram could have.
TIP
On the evening when 30 people viewed films on screen A, there could have been as few
as 37 or as many as 79 people viewing films on screen B.
Chapter 4 Solutions
Mathematics: A Practical Odyssey
Ch. 4.1 - To study the library habits of students at a local...Ch. 4.1 - To study the eating habits of students at a local...Ch. 4.1 - To study the composition of families in Manistee,...Ch. 4.1 - To study the spending habits of shoppers in...Ch. 4.1 - The speeds, in miles per hour, of forty randomly...Ch. 4.1 - The weight, in pounds, of thirty-five packages of...Ch. 4.1 - To examine the effects of a new registration...Ch. 4.1 - The frequency distribution shown in Figure 4.21...Ch. 4.1 - The frequency distribution shown in Figure 4.22...Ch. 4.1 - To study the output of a machine that fills boxes...
Ch. 4.1 - The ages of the nearly 4 million women who gave...Ch. 4.1 - The age composition of the population of the...Ch. 4.1 - Using the data in Figure 4.26, replace the...Ch. 4.1 - Using the data in Figure 4.26, replace the...Ch. 4.1 - The frequency distribution shown in Figure 4.27...Ch. 4.1 - The frequency distribution shown in Figure 4.28...Ch. 4.1 - Figure 4.29 lists the top five reasons given by...Ch. 4.1 - Figure 4.30 lists the worlds top six countries as...Ch. 4.1 - Figure 4.31 lists the race of new AIDS cases in...Ch. 4.1 - Figure 4.32 lists the types of accidental deaths...Ch. 4.1 - Figure 4.33 lists some common specialities of...Ch. 4.1 - Figure 4.34 lists the major metropolitan areas on...Ch. 4.1 - Answer the following questions using complete...Ch. 4.1 - Answer the following questions using complete...Ch. 4.1 - Answer the following questions using complete...Ch. 4.1 - Answer the following questions using complete...Ch. 4.1 - Answer the following questions using complete...Ch. 4.1 - Prob. 28ECh. 4.1 - Use a graphing calculator or Excel on the...Ch. 4.1 - Prob. 30ECh. 4.2 - Exercises 1-4, find mean, median, and mode of the...Ch. 4.2 - In Exercises 1-4, find mean, median, and mode of...Ch. 4.2 - Exercises 1-4, find mean, median, and mode of the...Ch. 4.2 - Prob. 4ECh. 4.2 - Prob. 5ECh. 4.2 - Find the mean, median, and mode of each set of...Ch. 4.2 - Find the mean, median, and mode of each set of...Ch. 4.2 - Prob. 8ECh. 4.2 - Kaitlin Mowry is a member of local 4-H club and...Ch. 4.2 - Prob. 10ECh. 4.2 - Jerry Rice holds the all-time record in...Ch. 4.2 - Wayne Gretzky, known as The Great One, holds the...Ch. 4.2 - Relief pitcher Mariano Rivera New York Yankees...Ch. 4.2 - Michael Jordan has been recognized as an...Ch. 4.2 - The frequency distribution in Figure 4.61 lists...Ch. 4.2 - Todd booth, an avid jogger, kept detailed records...Ch. 4.2 - To study the output of a machine that fills boxes...Ch. 4.2 - To study the efficiency of its new price-scanning...Ch. 4.2 - Katrina must take five exams in a math class. If...Ch. 4.2 - Eugene must take four exams in a geography class....Ch. 4.2 - The mean salary of twelve men is 58,000, and the...Ch. 4.2 - The mean salary of twelve men is 52,000, and the...Ch. 4.2 - Maria drove from Chicago, Illinois, to Milwaukee,...Ch. 4.2 - Sully drove from Atlanta, Georgia, to Birmingham,...Ch. 4.2 - The mean age of a class of twenty-five students is...Ch. 4.2 - The mean age of a class of fifteen students is...Ch. 4.2 - The mean salary of eight employees is 40.000, and...Ch. 4.2 - The mean salary of ten employees is 32,000, and...Ch. 4.2 - The number of civilians holding government jobs in...Ch. 4.2 - The ages of the nearly 4 million women who gave...Ch. 4.2 - The age composition of the population of the...Ch. 4.2 - In Exercises 32 and 33. use the age composition of...Ch. 4.2 - In Exercises 32 and 33. use the age composition of...Ch. 4.2 - Prob. 34ECh. 4.2 - Suppose the mean of Group I is A and the mean of...Ch. 4.2 - Prob. 36ECh. 4.3 - Perform each task, given the following sample...Ch. 4.3 - Perform each task, given the following sample...Ch. 4.3 - Perform each task, given the following sample...Ch. 4.3 - Find the mean and standard deviation of each set...Ch. 4.3 - Find the mean and standard deviation of each set...Ch. 4.3 - Find the mean and standard deviation of each set...Ch. 4.3 - 7.Joey and Dee Dee bowled five games at the Rock n...Ch. 4.3 - Paki surveyed the price of unleaded gasoline...Ch. 4.3 - Kaitlin Mowry is a member of the local 4H club and...Ch. 4.3 - Before Lance Armstrong admitted doping and was...Ch. 4.3 - 11.Relief pitcher Mariano RiveraNew York Yankees...Ch. 4.3 - Micheal Jordan has been recognized as an...Ch. 4.3 - The Truly Amazing Dudes are a group of comic...Ch. 4.3 - The weights in Pounds of the ten Truly Amazing...Ch. 4.3 - The normal monthly rainfall in Seattle,...Ch. 4.3 - The normal monthly rainfall in Phoenix, Arizona,...Ch. 4.3 - The frequency distribution in Figure 4.87 lists...Ch. 4.3 - Prob. 18ECh. 4.3 - To study the output of a machine that fills boxes...Ch. 4.3 - To study the efficiency of its new price-scanning...Ch. 4.3 - Prob. 21ECh. 4.3 - Prob. 22ECh. 4.3 - Prob. 23ECh. 4.3 - The ages of all employees at a specific state...Ch. 4.3 - Prob. 25ECh. 4.3 - Prob. 26ECh. 4.3 - Prob. 27ECh. 4.3 - Prob. 28ECh. 4.3 - Prob. 29ECh. 4.3 - Prob. 31ECh. 4.3 - Prob. 32ECh. 4.3 - Do Double Stuff Oreos really contain twice as much...Ch. 4.3 - Prob. 34ECh. 4.3 - Prob. 35ECh. 4.3 - Prob. 36ECh. 4.3 - Prob. 37ECh. 4.3 - Prob. 38ECh. 4.4 - The weight in ounces of several bags of corn chips...Ch. 4.4 - 451 435 482 449 454 451 479 448 432 423 461 475...Ch. 4.4 - The time in minutes spent waiting in line for...Ch. 4.4 - A die was rolled several times, and the results...Ch. 4.4 - What percent of the standard normal z-...Ch. 4.4 - What percent of the standard normal z-...Ch. 4.4 - What percent of the standard normal z-...Ch. 4.4 - What percent of the standard normal z-...Ch. 4.4 - A population is normally distributed with mean...Ch. 4.4 - A population is normally distributed with mean...Ch. 4.4 - Find the following probabilities. a. p(0<z<1.62)...Ch. 4.4 - Find the following probabilities. a. p(0<z<1.42)...Ch. 4.4 - Find c such that each of the following is true. a....Ch. 4.4 - Find c such that each of the following is true. a....Ch. 4.4 - A population X is normally distributed with mean...Ch. 4.4 - A population X is normally distributed with mean...Ch. 4.4 - A population is normally distributed with mean...Ch. 4.4 - A population is normally distributed with mean...Ch. 4.4 - The mean weight of a box of cereal filled by a...Ch. 4.4 - The amount of time required to assemble a...Ch. 4.4 - The time it takes an acrylic paint to dry is...Ch. 4.4 - The shrinkage in length of a certain brand of blue...Ch. 4.4 - The mean volume of a carton of milk filled by a...Ch. 4.4 - The amount of time between taking a pain reliever...Ch. 4.4 - The results of a statewide exam for assessing the...Ch. 4.4 - Professor Harde assumes that exam scores are...Ch. 4.4 - The time it takes an employee to package the...Ch. 4.4 - The time it takes an employee to package the...Ch. 4.4 - What are the characteristics of a normal...Ch. 4.4 - Are all distributions of data normal distributed?...Ch. 4.4 - Why is total area under a bell curve equal to 1?.Ch. 4.4 - Why are there no negative z-numbers in the body...Ch. 4.4 - When converting an x-number to a z-number, what...Ch. 4.4 - Is it logical to assume that the heights of all...Ch. 4.4 - Is it reasonable to assume that the ages of all...Ch. 4.4 - Prob. 36ECh. 4.4 - Prob. 37ECh. 4.5 - In exercises 1-4, use the body table in Appendix F...Ch. 4.5 - In exercises 1-4, use the body table in Appendix F...Ch. 4.5 - In exercises 1-4, use the body table in Appendix F...Ch. 4.5 - In exercises 1-4, use the body table in Appendix F...Ch. 4.5 - Find the z-number associated with a 92 level of...Ch. 4.5 - Find the z-number associated with a 97 level of...Ch. 4.5 - Find the z-number associated with a 75 level of...Ch. 4.5 - Find the z-number associated with a 85 level of...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 9-22, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 9-22, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - In Exercises 922, round off your answers sample...Ch. 4.5 - A survey asked, Can you imagine a situation in...Ch. 4.5 - A survey asked, Do you think that homeless people...Ch. 4.5 - A sample consisting of 430 men and 765 women was...Ch. 4.5 - A sample consisting of 942 men and 503 women was...Ch. 4.5 - A poll pertaining to environmental concerns had...Ch. 4.5 - A poll pertaining to educational goals had the...Ch. 4.5 - A recent poll pertaining to educational reforms...Ch. 4.5 - A recent poll pertaining to educational reforms...Ch. 4.5 - In exercises 29-32, you are planning a survey for...Ch. 4.5 - In exercises 29-32, you are planning a survey for...Ch. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - Prob. 33ECh. 4.5 - Prob. 34ECh. 4.5 - Prob. 35ECh. 4.5 - Prob. 36ECh. 4.5 - Prob. 37ECh. 4.5 - Prob. 38ECh. 4.5 - Prob. 39ECh. 4.6 - A set of n=6 ordered pairs has the following sums:...Ch. 4.6 - A set of n=8 ordered pairs has the following sums:...Ch. 4.6 - A set of n=5 ordered pairs has the following sums:...Ch. 4.6 - Given the ordered pairs (4,40), (6,37), (8,34) and...Ch. 4.6 - Given the ordered pairs (5,5), (7,10), (8,11),...Ch. 4.6 - 6.Given the ordered pairs (5,20), (6,15), (10,14),...Ch. 4.6 - Given the ordered pairs (2,6), (3,12), (6,15),...Ch. 4.6 - 8.The unemployment rate and the amount of...Ch. 4.6 - 9.The average hourly earnings and the average...Ch. 4.6 - Prob. 10ECh. 4.6 - The amounts of rice and tobacco grown in the...Ch. 4.6 - The median home price and average mortgage rate in...Ch. 4.6 - Prob. 13ECh. 4.6 - Prob. 14ECh. 4.6 - Prob. 15ECh. 4.6 - Prob. 16ECh. 4.6 - Prob. 17ECh. 4.6 - Throughout the twentieth century, the record time...Ch. 4.6 - 19.Heart disease is a much less problem in France...Ch. 4.CR - Find a the mean, b the median, c the mode, and d...Ch. 4.CR - To study the compositions of the families in...Ch. 4.CR - Prob. 3CRCh. 4.CR - Prob. 4CRCh. 4.CR - Prob. 5CRCh. 4.CR - The mean salary of twelve men is $37000 and the...Ch. 4.CR - Prob. 7CRCh. 4.CR - Prob. 8CRCh. 4.CR - Prob. 9CRCh. 4.CR - Classify the following types of data as discrete,...Ch. 4.CR - Prob. 11CRCh. 4.CR - Prob. 12CRCh. 4.CR - Prob. 13CRCh. 4.CR - All incoming freshmen at a major university are...Ch. 4.CR - Prob. 15CRCh. 4.CR - Prob. 16CRCh. 4.CR - Prob. 17CRCh. 4.CR - Prob. 18CRCh. 4.CR - Prob. 19CRCh. 4.CR - Prob. 20CRCh. 4.CR - Prob. 21CRCh. 4.CR - Prob. 22CRCh. 4.CR - Prob. 23CRCh. 4.CR - Prob. 24CRCh. 4.CR - Prob. 25CRCh. 4.CR - Prob. 26CRCh. 4.CR - Prob. 27CRCh. 4.CR - Prob. 28CRCh. 4.CR - Answer the following questions using complete...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Similar questions
- skip A swimming pool plan has concrete stairs leading down into the shallow end How much concrete will be needed to build the stairs? Bift 9 ft 2 ft 1 ft 9 ft 2 ft 5 ft [ ? ] ft³arrow_forwardhow to do part b,carrow_forwardIf p = 5 (mod 8), where p is prime, show that p|2 (P-1)/2 + 1. State and prove the corresponding result when p = 7 (mod 8). Deduce that 250 + 1 and 251 1 are composite. -arrow_forward
- Why the character no change for my remark?arrow_forwardDetermine the radius of convergence of a power series:12.6.5, 12.6.6, 12.6.7, 12.6.8Hint: Use Theorem12.5.1 and root test, ratio test, integral testarrow_forwardIn preparing for the upcoming holiday season, Fresh Toy Company (FTC) designed a new doll called The Dougie that teaches children how to dance. The fixed cost to produce the doll is $100,000. The variable cost, which includes material, labor, and shipping costs, is $31 per doll. During the holiday selling season, FTC will sell the dolls for $39 each. If FTC overproduces the dolls, the excess dolls will be sold in January through a distributor who has agreed to pay FTC $10 per doll. Demand for new toys during the holiday selling season is extremely uncertain. Forecasts are for expected sales of 60,000 dolls with a standard deviation of 15,000. The normal probability distribution is assumed to be a good description of the demand. FTC has tentatively decided to produce 60,000 units (the same as average demand), but it wants to conduct an analysis regarding this production quantity before finalizing the decision. (a) Determine the equation for computing FTC's profit for given values of the…arrow_forward
- To generate leads for new business, Gustin Investment Services offers free financial planning seminars at major hotels in Southwest Florida. Gustin conducts seminars for groups of 25 individuals. Each seminar costs Gustin $3,700, and the average first-year commission for each new account opened is $5,200. Gustin estimates that for each individual attending the seminar, there is a 0.01 probability that individual will open a new account. (a) Determine the equation for computing Gustin's profit per seminar, given values of the relevant parameters. Profit = (3,700 x 5,200) - New Accounts Opened Profit = 5,200 - (New Accounts Opened x 3,700) Profit = (New Accounts Opened x 3,700) - 5,200 Profit = New Accounts Opened - (5,200 × 3,700) Profit = (New Accounts Opened x 5,200) - 3,700 (b) What type of random variable is the number of new accounts opened? Hint: Review Appendix 12.1 for descriptions of various types of probability distributions. continuous integer uniform normal discrete uniform…arrow_forwardStrassel Investors buys real estate, develops it, and resells it for a profit. A new property is available, and Bud Strassel, the president and owner of Strassel Investors, believes if he purchases and develops this property, it can then be sold for $158,000. The current property owner has asked for bids and stated that the property will be sold for the highest bid in excess of $100,000. Two competitors will be submitting bids for the property. Strassel does not know what the competitors will bid, but he assumes for planning purposes that the amount bid by each competitor will be uniformly distributed between $100,000 and $148,000. (a) What is the estimate of the probability Strassel will be able to obtain the property using a bid of $128,000? (Use at least 5,000 trials. Round your answer three decimal places.) (b) How much does Strassel need to bid to be assured of obtaining the property? $128,000 $138,000 $148,000 (c) Use the simulation model to compute the profit for each trial of…arrow_forwardGrear Tire Company has produced a new tire with an estimated mean lifetime mileage of 34,500 miles. Management also believes that the standard deviation is 4,500 miles and that tire mileage is normally distributed. To promote the new tire, Grear has offered to refund a portion of the purchase price if the tire fails to reach 30,000 miles before the tire needs to be replaced. Specifically, for tires with a lifetime below 30,000 miles, Grear will refund a customer $1 per 100 miles short of 30,000. Construct a simulation model to answer the following questions. (Use at least 1,000 trials.) (a) For each tire sold, what is the average cost of the promotion (in $)? (Round your answer to two decimal places.) (b) What is the probability that Grear will refund more than $25 for a tire? (Round your answer to three decimal places.)arrow_forward
- Major League Baseball's World Series is a maximum of seven games, with the winner being the first team to win four games. Assume that the Atlanta Braves and the Minnesota Twins are playing in the World Series and that the first two games are to be played in Atlanta, the next three games at the Twins' ballpark, and the last two games, if necessary, back in Atlanta. Taking into account the projected starting pitchers for each game and the home field advantage, suppose the probabilities of Atlanta winning each game are as follows. Game 1 2 3 4 5 6 7 Probability of Win 0.61 0.54 0.47 0.46 0.47 0.56 0.49 Construct a simulation model in which whether Atlanta wins or loses each game is a random variable. Use the model to answer the following questions. (Use at least 1,000 trials.) (a) What is the average number of games played regardless of winner? (Round your answer to one decimal place.) games (b) What is the probability that the Atlanta Braves win the World Series? (Round your answer to…arrow_forward1 Brinkley 2 A B с D E F G H I J 3 Parameters 4 Selling Price 5 Procurement Cost 6 Labor Cost 7 Transportation Cost 8 9 Procurement Cost 10 Lower End of Interval Upper End of Interval Cost Probability 11 $10.00 12 $11.00 0.25 0.45 13 $12.00 0.3 14 15 Labor Cost 16 Lower End of Interval Upper End of Interval Cost Probability 17 $20.00 0.1 18 $22.00 0.25 19 $24.00 0.35 20 $25.00 0.3 21 22 Transportation Cost 23 Lower End of Interval Upper End of Interval Cost Probability 24 25 $3.00 $5.00 0.75 0.25 26 27 Model 28 Profit Per Unit 29 30 Simulation Trial Procurement Cost Labor Cost Transportation Cost Profit Per Unit Summary Statistics 31 1 Mean Profit Per Unit #DIV/0! 32 2 P(Profit <$5) #DIV/0! 83 3 34 4 35 5 36 6 37 7 38 8 39 9 40 10arrow_forwardModel File Available: Download WeddingIMS.xlsx The wedding date for a couple is quickly approaching, and the wedding planner must provide the caterer an estimate of how many people will attend the reception so that the appropriate quantity of food is prepared for the buffet. The following table contains information on the number of RSVP guests for the 145 invitations. Unfortunately, the number of guests does not always correspond to the number of RSVPed guests. Based on her experience, the wedding planner knows it is extremely rare for guests to attend a wedding if they notified that they will not be attending. Therefore, the wedding planner will assume that no one from these 50 invitations will attend. The wedding planner estimates that the each of the 25 guests planning to come solo has a 74% chance of attending alone, a 20% chance of not attending, and a 6% chance of bringing a companion. For each of the 60 RSVPs who plan to bring a companion, there is a 90% chance that they will…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage

Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt

Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill

Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Continuous Probability Distributions - Basic Introduction; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=QxqxdQ_g2uw;License: Standard YouTube License, CC-BY
Probability Density Function (p.d.f.) Finding k (Part 1) | ExamSolutions; Author: ExamSolutions;https://www.youtube.com/watch?v=RsuS2ehsTDM;License: Standard YouTube License, CC-BY
Find the value of k so that the Function is a Probability Density Function; Author: The Math Sorcerer;https://www.youtube.com/watch?v=QqoCZWrVnbA;License: Standard Youtube License