1 Stats Starts Here 2 Displaying And Describing Data 3 Relationships Between Categorical Variables—contingency Tables 4 Understanding And Comparing Distributions 5 The Standard Deviation As A Ruler And The Normal Model 6 Scatterplots, Association, And Correlation 7 Linear Regression 8 Regression Wisdom 9 Multiple Regression 10 Sample Surveys 11 Experiments And Observational Studies 12 From Randomness To Probability 13 Probability Rules! 14 Random Variables 15 Probability Models 16 Sampling Distribution Models And Confidence Intervals For Proportions 17 Confidence Intervals For Means 18 Testing Hypotheses 19 More About Tests And Intervals 20 Comparing Groups 21 Paired Samples And Blocks 22 Comparing Counts 23 Inferences For Regression 24 Multiple Regression Wisdom 25 Analysis Of Variance 26 Multifactor Analysis Of Variance 27 Introduction To Statistical Learning And Data Science R Review Exercises CR Cumulative Review Exercises expand_more
15.1 Bernoulli Trials 15.2 The Geometric Model 15.3 The Binomial Model 15.4 Approximating The Binomial With A Normal Model 15.5 The Continuity Correction 15.6 The Poisson Model 15.7 Other Continuous Random Variables:the Uniform And The Exponential Chapter Questions expand_more
Problem 1E Problem 2E: Bernoulli 2 Do these situations involve Bernoulli trials?
Explain.
You are rolling 5 dice and need... Problem 3E: 7. Toasters A manufacturer ships toasters in cartons of 20. In each carton, they estimate a 5%... Problem 4E: 8. Soccer A soccer learn estimates that they will score on 8% of the corner kicks. In next week’s... Problem 5E: 9. Toasters again In a batch of 10,000 toasters, what are the chances that fewer than 450 need to be... Problem 6E: 10. Soccer again If this team has 200 corner kicks over the season, what are the chances that they... Problem 7E: 11. Sell! A car dealership sells an average of 5 cars in a day. Using the Poisson model, what is the... Problem 8E: 12. Passing on A large hospital has an average of 7 fatalities in a week. Using the Poisson model,... Problem 9E: Telephone numbers A cable provider wants to contact customers in a particular telephone exchange to... Problem 10E: Serial numbers In an effort to check the quality of their cell phones, a manufacturing manager... Problem 11E: Component lifetimes Lifetimes of electronic components can often be modeled by an Exponential model.... Problem 12E: Website sales Suppose occurrences of sales on a small company’s website are well modeled by a... Problem 17E: On time A Department of Transportation report about air travel found that, nationwide, 76% of all... Problem 18E: Lost luggage A Department of Transportation report about air travel found that airlines misplace... Problem 19E: Hoops A basketball player has made 80% of his foul shots during the season. Assuming the shots are... Problem 20E: Chips Suppose a computer chip manufacturer rejects 2% of the chips produced because they fail... Problem 21E: More hoops For the basketball player in Exercise 19, what’s the expected number of shots until he... Problem 22E: Chips ahoy For the computer chips described in Exercise 20, how many do you expect to test before... Problem 23E: Customer center operator Raaj works at the customer service call center of a major credit card bank.... Problem 24E: Cold calls Justine works for an organization committed to raising money for Alzheimer’s research.... Problem 25E: Blood Only 4% of people have Type AB blood.
On average, how many donors must be checked to find... Problem 26E: Color blindness About 8% of males are color-blind. A researcher needs some color-blind subjects for... Problem 27E: Coins and intuition If you flip a fair coin 100 times,
a) Intuitively, how many heads do you... Problem 28E: Roulette and intuition An American roulette wheel has 38 slots, of which 18 are red, 18 are black,... Problem 29E: Lefties Assume that 13% of people are left-handed. If we select 5 people at random, find the... Problem 30E: Arrows An Olympic archer is able to hit the bull’s-eye 80% of the time. Assume each shot is... Problem 31E: Lefties, redux Consider our group of 5 people from Exercise 29.
How many lefties do you expect?
With... Problem 32E: More arrows Consider our archer from Exercise 30.
How many bull’s-eyes do you expect her to... Problem 33E Problem 34E: Still more arrows Suppose the archer from Exercise 30 shoots 10 arrows.
Find the mean and standard... Problem 35E Problem 36E: International students At a certain college, 6% of all students come from outside the United States.... Problem 37E Problem 38E: Frogs A wildlife biologist examines frogs for a genetic trait he suspects may be linked to... Problem 39E: And more tennis Suppose the tennis player in Exercise 37 serves 80 times in a match.
a) What are the... Problem 40E Problem 41E: Apples An orchard owner knows that he’ll have to use about 6% of the apples he harvests for cider... Problem 42E: Frogs, part II Based on concerns raised by his preliminary research, the biologist in Exercise 38... Problem 43E: Lefties, again A lecture hall has 200 seats with folding arm tablets, 30 of which are designed for... Problem 44E: No-shows An airline, believing that 5% of passengers fail to show up for flights, overbooks (sells... Problem 45E Problem 46E Problem 47E Problem 48E: Bank tellers I am the only bank teller on duty at my local bank. I need to run out for 10 minutes,... Problem 49E: TB Worldwide, tuberculosis is the number-one cause of death from an infectious disease. But the... Problem 50E: Earthquakes Suppose the probability of a major earthquake on a given day is 1 out of 10,000.
What’s... Problem 51E Problem 52E Problem 53E Problem 54E: True-false A true–false test consists of 50 questions. How many does a student have to get right to... Problem 55E Problem 56E Problem 57E Problem 58E Problem 59E Problem 60E: Quality control In an effort to improve the quality of their cell phones, a manufacturing manager... Problem 61E Problem 62E: Quality control, part 2 The cell phone manufacturer in Exercise 60 wants to model the time between... format_list_bulleted