1. The probability that a randomly selected patient who visits the emergency room will die within 1 year of the visit is 0.05. (binomial probability distribution)

a) What is the probability that exactly 1 of 10 randomly selected visitors to the ER will die within 1 year?

b) What is the probability that fewer than 2 of 25 randomly selected visitors to the ER will die within 1 year?

c) What is the probability that at least 2 of 25 randomly selected visitors to the ER will die within 1 year?

d) Would it be unusual if more than 3 of 30 randomly selected visitors to the ER died within 1 year? Why?

e) In a random sample of 1000 visitors to the ER, how many visitors are expected to die within the next year? What is the standard deviation number of deaths?

2. Determine whether the random variable is discrete or continuous.

a) The flight time accumulated by a randomly selected Air Force fighter pilot.

b) The number of points scored by the Miami Heat in a randomly selected basketball game.

3. Suppose that the talk time on the Apple iPhone is approximately normally distributed with mean 7 hours and standard deviation 0.8 hour.

a) What proportion of the time will a fully charged iPhone last at least 6 hours?

b) What is the probability a fully charged iPhone will last less than 5 hours?

c) What talk time would represent the cutoff for the top 5% of all talk times?

d) Would it be unusual for the phone to last more than 9 hours? Why?

4. The waist circumference of males 20 to 29 years old is approximately normally distributed, with mean 92.5 cm and standard deviation 13.7 cm.

a) Use the normal model to determine the proportion of 20- to 29-year-old males whose waist circumference is less than 100 cm.

b) What is the probability that a randomly selected 20- to 29-year-old male has a waist circumference between 80 and 100 cm?

c) Determine the waist circumference that represents the...

...SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Find an antiderivative of the given function. 1) x-3 + 1 4 x 2) cos πx + 6 sin x 6 Find the most general antiderivative. 6 3) ( t - t) dt
1)
2)
∫
3)
4)
∫ sin θ(cot θ + csc θ) dθ
4)
Use a ﬁnite approximation to estimate the area under the graph of the given function on the stated interval as instructed. 5) f(x) = x2 between x = 2...

... Spring 2014
Introduction to Beaches and Shorelines ES 142
STUDY QUESTIONS #3
Subject: Climatic Effects On Shorelines Refer to Chapter 5
1. How are barriers formed along the North Slope of Alaska?
2. Why are rivers muddier in the South than they are in the North?
3. What happens to the calcium carbonate (CaCO3, shells and coral) content of beaches from...

...MGMT 4020 Exam3StudyGuide – Fall 2012
As I discussed in class, exam3 will cover chapters 11-14. The exam will consist of 40 multiple choice questions worth 5 points each, and a one-page essay.
You choose one of the essay questions to answer. Please bring your essay with you to the exam.
I am expecting well-written five-paragraph essays with the first and...

...compensating them and providing for their health and safety.
2. Define the basic management function of staffing. PG 264
Being able to identify and hire good employees can mean the difference between having a successful and unsuccessful business.
3. What is a Job Specification? PG 264
A job specification is a detailed written statement of work assignments and the qualifications needed to do the job acceptably.
4. What is a Job Description? PG 264
A job...

...Mgmt StudyGuideExam3
Chapter 9
* Acquired needs theory: motivation theory that focuses on learned needs-such as those for achievement, power and affiliation- that becomes enduring tendencies
* Content theory: a motivation theory that focuses on what needs a person is trying to satisfy and on what features of the work environment seem to satisfy those needs
* Equity theory: a motivation theory proposing that...

...QNT/561 Final Examination StudyGuide
This studyguide will prepare you for the Final Examination you will complete in the final week. It contains practice questions, which are related to each week’s objectives. In addition, refer to each week’s readings and your student guide as study references for the Final Examination.
Week One: Descriptive Statistics and Probability Distributions
Objective:...

...Exam 1
Chapter 1
* In statistics the group we wish to study is called the population
* A sample is a subset of the population which is used to gain insight about the population. Samples are used to represent a larger group, the population.
* • Descriptive statistics – the collection, organization, analysis, and presentation of data.
* Inferential statistics – uses descriptive statistics to estimate population parameters; an educated guess...

...different arrangements of four pictures from a selection of ten pictures is:
A.5,040
B.24
C.151,200
D.210
The failure rate for taking the bar exam in Philadelphia is 41%. If 375 people take the bar exam, what is the mean for the number of failures?
A.138.1
B.171.2
C.90.7
D.153.8
A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30...

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