EBK ALGEBRA AND TRIGONOMETRY
EBK ALGEBRA AND TRIGONOMETRY
4th Edition
ISBN: 8220100548512
Author: Watson
Publisher: CENGAGE L
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Addition Rule of Probability
It simply refers to the likelihood of an event taking place whenever the occurrence of an event is uncertain. The probability of a single event can be calculated by dividing the number of successful trials of that event by the total number of trials.
Expected Value
When a large number of trials are performed for any random variable ‘X’, the predicted result is most likely the mean of all the outcomes for the random variable and it is known as expected value also known as expectation. The expected value, also known …
Probability Distributions
Understanding probability is necessary to know the probability distributions. In statistics, probability is how the uncertainty of an event is measured. This event can be anything. The most common examples include tossing a coin, rolling a die, or choosi…
Basic Probability
The simple definition of probability it is a chance of the occurrence of an event. It is defined in numerical form and the probability value is between 0 to 1. The probability value 0 indicates that there is no chance of that event occurring and the prob…
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Chapter 14.2, Problem 68E
To determine

(a)

To find:

The probability that the family has two boys given that the oldest child is a boy.

To determine

(b)

To find:

The probability that the family has two boys given that one of the children is a boy.

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Chapter 14.2, Problem 67E
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Chapter 14.3, Problem 1E

Chapter 14 Solutions

EBK ALGEBRA AND TRIGONOMETRY

Ch. 14.1 - CONCEPTS The Fundamental Counting Principle says...Ch. 14.1 - CONCEPTS The number of ways of arranging r objects...Ch. 14.1 - Prob. 3ECh. 14.1 - Prob. 4ECh. 14.1 - Prob. 5ECh. 14.1 - Prob. 6ECh. 14.1 - Prob. 7ECh. 14.1 - Prob. 8ECh. 14.1 - Prob. 9ECh. 14.1 - Prob. 10E
Ch. 14.1 - Prob. 11ECh. 14.1 - Prob. 12ECh. 14.1 - Prob. 13ECh. 14.1 - Prob. 14ECh. 14.1 - Prob. 15ECh. 14.1 - Prob. 16ECh. 14.1 - Prob. 17ECh. 14.1 - Prob. 18ECh. 14.1 - Prob. 19ECh. 14.1 - Prob. 20ECh. 14.1 - Prob. 21ECh. 14.1 - Prob. 22ECh. 14.1 - Prob. 23ECh. 14.1 - Prob. 24ECh. 14.1 - Prob. 25ECh. 14.1 - Rolling a Pair of Dice A red die and a white die...Ch. 14.1 - Prob. 27ECh. 14.1 - Choosing Outfits A girl has five skirts, eight...Ch. 14.1 - License Plate Standard automobile license plates...Ch. 14.1 - ID Numbers A companys employee ID number system...Ch. 14.1 - Prob. 31ECh. 14.1 - Prob. 32ECh. 14.1 - Prob. 33ECh. 14.1 - Prob. 34ECh. 14.1 - Prob. 35ECh. 14.1 - Prob. 36ECh. 14.1 - Prob. 37ECh. 14.1 - Prob. 38ECh. 14.1 - Prob. 39ECh. 14.1 - Prob. 40ECh. 14.1 - Prob. 41ECh. 14.1 - Prob. 42ECh. 14.1 - Prob. 43ECh. 14.1 - Prob. 44ECh. 14.1 - Prob. 45ECh. 14.1 - Prob. 46ECh. 14.1 - Prob. 47ECh. 14.1 - 41-52 Counting Permutations These exercises...Ch. 14.1 - Prob. 49ECh. 14.1 - 41-52 Counting Permutations These exercises...Ch. 14.1 - Prob. 51ECh. 14.1 - Prob. 52ECh. 14.1 - Prob. 53ECh. 14.1 - Prob. 54ECh. 14.1 - 53-56 Distinguishable Permutations These exercises...Ch. 14.1 - 53-56 Distinguishable Permutations These exercises...Ch. 14.1 - Prob. 57ECh. 14.1 - Room Assignments When seven students take a trip,...Ch. 14.1 - Work Assignments Eight workers are cleaning a...Ch. 14.1 - Prob. 60ECh. 14.1 - Prob. 61ECh. 14.1 - Prob. 62ECh. 14.1 - Prob. 63ECh. 14.1 - Prob. 64ECh. 14.1 - Prob. 65ECh. 14.1 - Prob. 66ECh. 14.1 - Prob. 67ECh. 14.1 - Prob. 68ECh. 14.1 - Prob. 69ECh. 14.1 - Prob. 70ECh. 14.1 - Prob. 71ECh. 14.1 - APPLICATIONS 61-74 CombinationsThese exercises...Ch. 14.1 - APPLICATIONS 61-74 CombinationsThese exercises...Ch. 14.1 - APPLICATIONS 61-74 CombinationsThese exercises...Ch. 14.1 - Prob. 75ECh. 14.1 - Prob. 76ECh. 14.1 - APPLICATIONS 75-90 Counting PrinciplesSolve these...Ch. 14.1 - Prob. 78ECh. 14.1 - Dance Committee A school dance committee is to...Ch. 14.1 - Prob. 80ECh. 14.1 - Hockey Lineup A hockey team has 20 players, of...Ch. 14.1 - Choosing a Pizza A pizza parlour offers four sizes...Ch. 14.1 - Choosing a Committee In how many ways can a...Ch. 14.1 - Prob. 84ECh. 14.1 - Arranging Books In how many ways can five...Ch. 14.1 - Prob. 86ECh. 14.1 - Seating ArrangementsIn how many ways can four men...Ch. 14.1 - Prob. 88ECh. 14.1 - Prob. 89ECh. 14.1 - Choosing a Delegation Three delegates are to be...Ch. 14.1 - DISCUSS: Pair of InitialsExplain why in any group...Ch. 14.1 - Prob. 92ECh. 14.1 - Prob. 93ECh. 14.1 - Prob. 94ECh. 14.2 - The set of all possible outcomes of an experiment...Ch. 14.2 - Let E and F be events in a sample space S. aThe...Ch. 14.2 - The conditional probability of E given that F...Ch. 14.2 - Let E and F be events in a sample space S. aThe...Ch. 14.2 - Rolling a Die An experiment consists of rolling a...Ch. 14.2 - Prob. 6ECh. 14.2 - Prob. 7ECh. 14.2 - Prob. 8ECh. 14.2 - Prob. 9ECh. 14.2 - Prob. 10ECh. 14.2 - Prob. 11ECh. 14.2 - Prob. 12ECh. 14.2 - Prob. 13ECh. 14.2 - Prob. 14ECh. 14.2 - Prob. 15ECh. 14.2 - Three CDs are picked at random from a collection...Ch. 14.2 - Prob. 17ECh. 14.2 - Prob. 18ECh. 14.2 - Prob. 19ECh. 14.2 - Prob. 20ECh. 14.2 - Prob. 21ECh. 14.2 - Prob. 22ECh. 14.2 - Prob. 23ECh. 14.2 - Prob. 24ECh. 14.2 - Prob. 25ECh. 14.2 - Prob. 26ECh. 14.2 - Prob. 27ECh. 14.2 - Prob. 28ECh. 14.2 - 29-30 Refer to the spinner in Exercises 2122. Find...Ch. 14.2 - 29-30 Refer to the spinner in Exercises 2122. Find...Ch. 14.2 - Prob. 31ECh. 14.2 - 31-32 A jar contains five red balls numbered 1 to...Ch. 14.2 - Prob. 33ECh. 14.2 - 33-40 Intersection of Events These exercises...Ch. 14.2 - Prob. 35ECh. 14.2 - Prob. 36ECh. 14.2 - Prob. 37ECh. 14.2 - Prob. 38ECh. 14.2 - 39-40 Spinners A and B shown in the figure are...Ch. 14.2 - 39-40 Spinners A and B shown in the figure are...Ch. 14.2 - Four Siblings A couple intends to have four...Ch. 14.2 - Prob. 42ECh. 14.2 - Roulette An American roulette wheel has 38 slots....Ch. 14.2 - Prob. 44ECh. 14.2 - Lottery In the 6/49 lottery game, a player selects...Ch. 14.2 - Prob. 46ECh. 14.2 - Prob. 47ECh. 14.2 - Quality Control To control the quality of their...Ch. 14.2 - Prob. 49ECh. 14.2 - Making Words A monkey is trained to arrange wooden...Ch. 14.2 - Prob. 51ECh. 14.2 - Prob. 52ECh. 14.2 - Prob. 53ECh. 14.2 - Prob. 54ECh. 14.2 - APPLICATIONS Roulette An American roulette wheel...Ch. 14.2 - APPLICATIONS Choosing a Committee A committee of...Ch. 14.2 - Prob. 57ECh. 14.2 - Prob. 58ECh. 14.2 - Prob. 59ECh. 14.2 - Prob. 60ECh. 14.2 - Prob. 61ECh. 14.2 - Prob. 62ECh. 14.2 - Prob. 63ECh. 14.2 - Prob. 64ECh. 14.2 - Prob. 65ECh. 14.2 - APPLICATIONS Making Words A monkey is trained to...Ch. 14.2 - APPLICATIONS Making WordsA monkey is trained to...Ch. 14.2 - Prob. 68ECh. 14.3 - CONCEPTS A binomial experiment is one in which...Ch. 14.3 - Prob. 2ECh. 14.3 - Prob. 3ECh. 14.3 - Prob. 4ECh. 14.3 - Prob. 5ECh. 14.3 - Prob. 6ECh. 14.3 - SKILLS 3-14Binomial Trials Five independent trials...Ch. 14.3 - Prob. 8ECh. 14.3 - Prob. 9ECh. 14.3 - Prob. 10ECh. 14.3 - Prob. 11ECh. 14.3 - Prob. 12ECh. 14.3 - Prob. 13ECh. 14.3 - Prob. 14ECh. 14.3 - Prob. 15ECh. 14.3 - SKILLS 15-16 Probability Distribution An...Ch. 14.3 - Prob. 17ECh. 14.3 - Prob. 18ECh. 14.3 - Prob. 19ECh. 14.3 - Prob. 20ECh. 14.3 - Prob. 21ECh. 14.3 - ArcheryAn archer hits his target 80 of the time....Ch. 14.3 - Prob. 23ECh. 14.3 - Prob. 24ECh. 14.3 - Prob. 25ECh. 14.3 - Prob. 26ECh. 14.3 - Prob. 27ECh. 14.3 - Prob. 28ECh. 14.3 - Prob. 29ECh. 14.3 - Prob. 30ECh. 14.3 - Defective Light Bulbs The Dim Bulb Lighting...Ch. 14.3 - Prob. 32ECh. 14.3 - Prob. 33ECh. 14.3 - Political Surveys In a certain county, 60 of the...Ch. 14.3 - Prob. 35ECh. 14.3 - Prob. 36ECh. 14.3 - Prob. 37ECh. 14.3 - Selecting CardsThree cards are randomly selected...Ch. 14.3 - Prob. 39ECh. 14.3 - Telephone Marketing A mortgage company advertises...Ch. 14.3 - Prob. 41ECh. 14.3 - Prob. 42ECh. 14.3 - Prob. 43ECh. 14.4 - CONCEPTS 1. If a game gives payoffs of 10 and 100...Ch. 14.4 - Prob. 2ECh. 14.4 - Prob. 3ECh. 14.4 - Prob. 4ECh. 14.4 - Prob. 5ECh. 14.4 - Prob. 6ECh. 14.4 - Prob. 7ECh. 14.4 - Prob. 8ECh. 14.4 - Prob. 9ECh. 14.4 - Prob. 10ECh. 14.4 - Prob. 11ECh. 14.4 - Prob. 12ECh. 14.4 - Prob. 13ECh. 14.4 - Prob. 14ECh. 14.4 - Prob. 15ECh. 14.4 - Prob. 16ECh. 14.4 - Prob. 17ECh. 14.4 - Prob. 18ECh. 14.4 - Prob. 19ECh. 14.4 - Prob. 20ECh. 14.4 - Prob. 21ECh. 14.4 - Prob. 22ECh. 14.4 - Prob. 23ECh. 14.4 - Prob. 24ECh. 14.4 - Prob. 25ECh. 14.4 - Prob. 26ECh. 14.4 - Prob. 27ECh. 14.4 - Prob. 28ECh. 14.4 - Prob. 29ECh. 14.4 - Prob. 30ECh. 14.4 - DISCUSSDISCOVERPROVEWRITE DISCUSS: The Expected...Ch. 14.CR - a What does the Fundamental Counting Principle...Ch. 14.CR - Prob. 2CCCh. 14.CR - a What is a combination of r elements of a set?...Ch. 14.CR - a In solving a problem involving picking r objects...Ch. 14.CR - a What is meant by an experiment? Sample space? b...Ch. 14.CR - Prob. 6CCCh. 14.CR - a What is meant by the conditional probability of...Ch. 14.CR - Prob. 8CCCh. 14.CR - a Suppose that a game gives payouts a1,a2,...,an...Ch. 14.CR - Prob. 1ECh. 14.CR - Prob. 2ECh. 14.CR - Prob. 3ECh. 14.CR - Prob. 4ECh. 14.CR - 1-24 Counting These exercises involve counting....Ch. 14.CR - Prob. 6ECh. 14.CR - Prob. 7ECh. 14.CR - Prob. 8ECh. 14.CR - Prob. 9ECh. 14.CR - Prob. 10ECh. 14.CR - Prob. 11ECh. 14.CR - Prob. 12ECh. 14.CR - Prob. 13ECh. 14.CR - Prob. 14ECh. 14.CR - Prob. 15ECh. 14.CR - Prob. 16ECh. 14.CR - Prob. 17ECh. 14.CR - Prob. 18ECh. 14.CR - Prob. 19ECh. 14.CR - Prob. 20ECh. 14.CR - Prob. 21ECh. 14.CR - Prob. 22ECh. 14.CR - 1-24 Counting These exercises involve counting....Ch. 14.CR - Prob. 24ECh. 14.CR - Prob. 25ECh. 14.CR - Prob. 26ECh. 14.CR - Prob. 27ECh. 14.CR - Prob. 28ECh. 14.CR - Prob. 29ECh. 14.CR - Prob. 30ECh. 14.CR - Prob. 31ECh. 14.CR - Prob. 32ECh. 14.CR - Prob. 33ECh. 14.CR - Prob. 34ECh. 14.CR - Prob. 35ECh. 14.CR - 25-42 ProbabilityThese exercises involve...Ch. 14.CR - Prob. 37ECh. 14.CR - Prob. 38ECh. 14.CR - Prob. 39ECh. 14.CR - Prob. 40ECh. 14.CR - Prob. 41ECh. 14.CR - Prob. 42ECh. 14.CR - Prob. 43ECh. 14.CR - Prob. 44ECh. 14.CR - Prob. 45ECh. 14.CR - Prob. 46ECh. 14.CR - Prob. 47ECh. 14.CR - Prob. 48ECh. 14.CR - Prob. 49ECh. 14.CR - Prob. 50ECh. 14.CT - Alice and Bill have four grandchildren, and they...Ch. 14.CT - A hospital cafeteria offers a fixed-price lunch...Ch. 14.CT - An Internet service provider requires its customer...Ch. 14.CT - Over the past year, John has purchased 30 books. a...Ch. 14.CT - A commuter must travel from Ajax to Barrie and...Ch. 14.CT - Prob. 6CTCh. 14.CT - An anagram of a word is a rearrangement of the...Ch. 14.CT - A board of directors consisting of eight members...Ch. 14.CT - Prob. 9CTCh. 14.CT - A jar contains five red balls, numbered 1 to 5,...Ch. 14.CT - Three people are chosen at random from a group of...Ch. 14.CT - Prob. 12CTCh. 14.CT - 13. In a group of four students, what is the...Ch. 14.CT - An unbalanced coin weighted so that the...Ch. 14.CT - Prob. 15CTCh. 14.FOM - Prob. 1PCh. 14.FOM - Prob. 2PCh. 14.FOM - Dividing a JackpotA game between two players...Ch. 14.FOM - Prob. 5PCh. 14.FOM - Areas of Curved Regions The Monte Carlo method can...Ch. 14.FOM - Prob. 7P
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