Introductory Statistics1st EditionBarbara Illowsky, Susan Dean Publisher: OpenStax CollegeISBN: 9781938168208
Introductory Statistics
Solutions for Introductory Statistics
Problem 4.1TI:
A hospital researcher Is Interested In the number of times the average post-op patient will ring the...Problem 4.2TI:
Jeremiah has basketball practice two days a week. Ninety percent of the rime, he attends both...Problem 4.4TI:
A hospital researcher is interested in the number of times the average post-op patient will ring the...Problem 4.5TI:
You are playing a game of chance In which four cards are drawn from a standard deck of 52 cards. You...Problem 4.6TI:
Suppose you play a game with a spinner. You play each game by spinning the spinner once. P(red)=23 ,...Problem 4.8TI:
On Ma 11, 2013 at 9:30 PM. the probability that moderate seismic activity (one moderate earthquake)...Problem 4.9TI:
The state health board is concerned about the amount of fruit available in school lunches....Problem 4.10TI:
A trainer is teaching a dolphin to do tricks. The probability that the dolphin successfully performs...Problem 4.11TI:
A fair, six-sided die is rolled ten times. Each roll is Independent. You want to find the...Problem 4.12TI:
Sixty-five percent of people pass the state driver’s exam on the first try A group of 50 Individuals...Problem 4.13TI:
About 32% of students participate in a community volunteer program outside of school. If 30 students...Problem 4.14TI:
According to a Gallup poll, 60% of American adults prefer saving over spending. Let X = the number...Problem 4.15TI:
During the 2013 regular NBA season. DeAndre Jordan of the Los Angeles Clippers had the highest field...Problem 4.16TI:
A lacrosse team is selecting a captain. The names of all the seniors are put into a hat, and the...Problem 4.17TI:
You throw darts at a board until you hit the center area. Your probability of hitting the center...Problem 4.18TI:
An instructor feels that 15% of students get below a C on their final exam. She decides to look at...Problem 4.19TI:
You need to find a store that carries a special printer ink. You know that of the stores that carry...Problem 4.20TI:
The probability of a defective steel rod is 0.01. Steel rods are selected at random. Find the...Problem 4.21TI:
The literacy rate for a nation measures the proportion of people age 15 and over who can read and...Problem 4.22TI:
A bag contains letter tiles. Forty-four of the tiles are vowels, and 56 are consonants. Seven tiles...Problem 4.23TI:
A gross of eggs contains 144 eggs. A particular gross Is known to have 12 cracked eggs. An Inspector...Problem 4.24TI:
A palette has 200 milk cartons. Of the 200 canons, ft Is known that ten of them have leaked and...Problem 4.25TI:
An intramural basketball team Is to be chosen randomly from 15 boys and 12 girls. The team has ten...Problem 4.26TI:
The average number of fish caught In an hour Is eight. Of interest Is the number of fish caught In...Problem 4.27TI:
An electronics store expects to have ten returns per day on average. The manager wants to know the...Problem 4.28TI:
An emergency room at a particular hospital gets an average of five patients per hour. A doctor wants...Problem 4.29TI:
A customer service center receives about ten emails every half-hour. What is the probability that...Problem 4.30TI:
According to a recent poll by the Pew Internet Project, girls between the ages of 14 and 17 send an...Problem 4.31TI:
Atlanta’s Hartsfield-Jackson International Airport Is the busiest airport in the world. On average...Problem 4.32TI:
On May 13, 2013, starting at 4:30 PM, the probability of moderate seismic activity for the next 48...Problem 1P:
Use the following information to answer the next five exercises: A company wants to evaluate its...Problem 2P:
Use the following information to answer the next flue exercises: A company wants to evaluate Its...Problem 3P:
Use the following information to answer the next flue exercises: A company wants to evaluate Its...Problem 4P:
Use the following information to answer the next foe exercises: A company wants to evaluate its...Problem 5P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 6P:
Use the following information to answer the next six exercises: A baker is deciding how many batches...Problem 7P:
Use the following information to answer the next six exercises: A baker is deciding how many batches...Problem 8P:
Use the following information to answer the next six exercises: A baker is deciding how many batches...Problem 9P:
Use the following information to answer the next six exercises: A baker is deciding how many batches...Problem 10P:
Use the following information o answer the next four exercises: Ellen has music practice three das a...Problem 11P:
Use the following information to answer the next four exercises: Ellen has music practice three days...Problem 12P:
Use the following information to answer the next four exercises: Ellen has music practice three days...Problem 13P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 14P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 15P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 16P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 17P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 18P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 19P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 20P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 21P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 22P:
Use the following information to answer the next flue exercises: Javier volunteers in community...Problem 23P:
Use the following information to answer the next five exercises: A physics professor wants to know...Problem 24P:
Use the following information to answer the next five exercises: A physics professor wants to know...Problem 25P:
Use the following information to answer the next five exercises: A physics professor wants to know...Problem 26P:
Use the following information to answer the next five exercises: A physics professor wants to know...Problem 27P:
Use the following information to answer the next five exercises: A physics professor wants to know...Problem 28P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 29P:
Use the following information to answer the next seven exercises: A ballet interested is interested...Problem 30P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 31P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 32P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 33P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 34P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 35P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 36P:
Use the following information to answer the next seven exercises: A ballet instructor is interested...Problem 37P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 38P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 39P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 40P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 41P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 42P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 43P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 44P:
Use the following information to answer the next eight exercises: The Higher Education Research...Problem 45P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 46P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 47P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 48P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 49P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 50P:
Use the following information to answer the next six exercises: The Higher Education Research...Problem 51P:
Use the following information to answer the next five exercises: Suppose that a group of statistics...Problem 52P:
Use the following information to answer the next five exercises: Suppose that a group of statistics...Problem 53P:
Use the following information to answer the next five exercises: Suppose that a group of statistics...Problem 54P:
Use the following information to answer the next five exercises: Suppose that a group of statistics...Problem 55P:
Use the following information to answer the next five exercises: Suppose that a group of statistics...Problem 56P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 57P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 58P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 59P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 60P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 61P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 62P:
Use the following information to answer the next six exercise: On average, a clothing store gets 120...Problem 63P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 64P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 65P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 66P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 67P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 68P:
Use the following information o answer the next six exercises: On average, eight teens in the U.S....Problem 69H:
Suppose that the PDF for the number of years it takes to earn a Bachelor of Science (B.S.) degree is...Problem 70H:
A theater group holds a fund-raiser. It sells 100 raffle tickets for $5 apiece. Suppose you purchase...Problem 71H:
A game Involves selecting a card from a regular 52-card deck and tossing a coin. The coin is a fair...Problem 72H:
You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets...Problem 73H:
Complete the PDF and answer the questions. a. Find the probability that x = 2. b. Find the expected...Problem 74H:
Suppose that you are offered the following deal.’ You roll a die. If you roll a six. you win Sb. if...Problem 75H:
A venture capitalist, willing to invest 51.000,000. has three investments to choose from. The first...Problem 76H:
Suppose that 20,000 married adults in the United States were randomly surveyed as to the number of...Problem 77H:
Suppose that the PDF for the number of years It takes to earn a Bachelor of Science (B.S.) degree is...Problem 78H:
People visiting video rental stores often rent more than one DVD at a time. The probability...Problem 79H:
A friend’ offers you the following deal. For a $10 fee, you may pick an envelope from a box...Problem 80H:
Florida State University has 14 statistics classes scheduled for Its Summer 2013 term. One class has...Problem 81H:
In a lottery, there are 250 prizes of $5. 50 prizes of $25, and ten prizes of $100. Assuming that...Problem 82H:
According to a recent ankle the average number of babies born with significant hearing loss...Problem 83H:
Use the following information to answer the next four exercises. Recently a nurse commented that...Problem 84H:
Use the following information to answer the next four exercises. Recently, a nurse commented that...Problem 85H:
Use the following information to answer the next four exercises. Recently a nurse commented that...Problem 86H:
Use the following information to answer the next four exercises. Recently, a nurse commented that...Problem 87H:
People visiting video rental stores often rent more than one DD at a nine. The probability...Problem 88H:
A school newspaper reporter decides to randomly survey 12 Students to see If they will attend Tet...Problem 89H:
Use the following information to answer the next two exercises The probability that the San Jose...Problem 90H:
Use the following infonnanors to answer the next two exercises The probability that the San Jose...Problem 91H:
What is the probability that the San Jose Sharks win at least five games in that upcoming month a....Problem 92H:
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer....Problem 93H:
A student takes a 32-question multiple-choice exam, but did not study and randomly guesses each...Problem 94H:
Six different colored dice are rolled. Of interest Is the number of dice that show a one. a. In...Problem 95H:
More than 96 percent of the veiy Largest colleges and universities (more than 15.000 total...Problem 96H:
Suppose that about 85% of graduating students attend their graduation. A group of 22 graduating...Problem 97H:
At The Fencing Center. 60% of the fencers use the foil as their main weapon. We randomly survey 25...Problem 98H:
Approximately 8% of students at a local high school participate in after-school sports all four...Problem 99H:
The chance of an IRS audit for a tax return with over $25000 in income is about 2% per year. We are...Problem 100H:
It has been estimated that only about 30% of California residents have adequate earthquake supplies....Problem 101H:
There are two similar games played for Chinese New Year and Vietnamese New Year. In the Chinese...Problem 102H:
According to The World Bank, only 9% of the population of Uganda had access to electricity as of...Problem 103H:
The literacy rate for a nation measures the proportion of people age 15 and over that can read and...Problem 104H:
A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership...Problem 105H:
Suppose that the probability that an adult In America will watch the Super Bowl is 40°ö. Each person...Problem 106H:
It has been estimated that only about 3000 of California residents have adequate earthquake...Problem 107H:
In one of its Spring catalogs, Li. Beans advertised footwear on 29 of its 192 catalog pages. Suppose...Problem 108H:
Suppose that you are performing the probability experiment of rolling one fair six-sided die. Let F...Problem 109H:
Ellen has music practice three days a week. She practices for all of the three days 850o of the...Problem 110H:
The World Bank records the prevalence of HIV In countries around the world. According to their data....Problem 111H:
According to a recent Pew Research poll, 75% of millenials (people born between 1981 and 1995) have...Problem 112H:
A group of Martial Arts students Is planning on participating In an upcoming demonstration. Six are...Problem 113H:
In one of its Spring catalogs, L.L. Bean advertised footwear on 29 of its 192 catalog pages. Suppose...Problem 114H:
Suppose that a technology task force Is being formed to stud technology awareness among instructors....Problem 115H:
Suppose that nine Massachusetts athletes are scheduled to appear at a charity benefit. The nine are...Problem 116H:
A bridge hand Is defined as 13 cards selected at random and without replacement from a deck of 52...Problem 117H:
The switchboard in a Minneapolis law office gets an average of 5.5 incoming phone calls during the...Problem 118H:
The matemity ward at Dr. Jose Fabella Memorial Hospital In Manila In the Philippines Is one of the...Problem 119H:
A manufacturer of Christmas tree light bulbs knows that 3% of its bulbs are defective. Find the...Problem 120H:
The average number of children a Japanese woman has in her lifetime is 1.37. Suppose that one...Problem 121H:
The average number of children a Spanish woman has in her lifetime is 1.47. Suppose that one Spanish...Problem 122H:
Fertile, female cats produce an average of three litters per year. Suppose that one fertile, female...Problem 123H:
The chance of having an extra fortune In a fortune cookie is about 3%. GIven a bag of 1.1$ fortune...Problem 124H:
According to the South Carolina Department of Mental Health web site, for every 200 U.S. women, the...Problem 125H:
The chance of an IRS audit for a tax return with over $25.000 in income Is about 2% per year....Problem 126H:
Approximately 8% of students at a local high school participate in after-school sports all four...Problem 127H:
On average, Pierre, an amateur chef, drops three pieces of egg shell into every two cake batters he...Browse All Chapters of This Textbook
Chapter 1 - Sampling And DataChapter 2 - Descriptive StatisticsChapter 3 - Probability TopicsChapter 4 - Discrete Random VariablesChapter 5 - Continuous Random VariablesChapter 6 - The Normal DistributionChapter 7 - The Central Limit TheoremChapter 8 - Confidence IntervalsChapter 9 - Hypothesis Testing With One SampleChapter 10 - Hypothesis Testing With Two Samples
Book Details
Introductory Statistics follows the scope and sequence of a one-semester, introduction to statistics course and is geared toward students majoring in fields other than math or engineering. This text assumes students have been exposed to intermediate algebra, and it focuses on the applications of statistical knowledge rather than the theory behind it. The foundation of this textbook is Collaborative Statistics, by Barbara Illowsky and Susan Dean, which has been widely adopted. Introductory Statistics includes innovations in art, terminology, and practical applications, all with a goal of increasing relevance and accessibility for students. We strove to make the discipline meaningful and memorable, so that students can draw a working knowledge from it that will enrich their future studies and help them make sense of the world around them. The text also includes Collaborative Exercises, integration with TI-83,83+,84+ Calculators, technology integration problems, and statistics labs.
Sample Solutions for this Textbook
We offer sample solutions for Introductory Statistics homework problems. See examples below:
More Editions of This Book
Corresponding editions of this textbook are also available below:
INTRODUCTORY STATISTICS
13th Edition
ISBN: 2810015182961
Introductory Statistics
16th Edition
ISBN: 9781948847001
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