exam1review - Math 10C Exam 1 Review Outline Basic...

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1 Math 10C Exam 1 Review Outline Basic Information for the Midterm Exam: The exam will consist of approximately 5 questions, with multiple parts . You will not be allowed a calculator on the exam, so please do not bring one. You should bring a number two pencil. (You can bring more than one if you feel so inclined.) You are not permitted a page of notes, but a reference sheet with relevant formulas will be provided on the exam. Also bring your student ID card , as we will be checking those at the exam. We reserve the right to place your backpacks in the front of the class. Also, don’t worry about bringing a blue book, as you will be able to write directly on the exam. The exam will be held in class (Peterson 110) on Wednesday, April 25 th , 2007 . You should have sufficient time to go back through your work and check your math. Remember, does your answer make sense? (Draw a picture/plug numbers in.) Do not cheat on this exam. Cheating will be taken seriously and you will fail the course . So, please do not cheat. Also, solutions will be posted on my website http://math.ucsd.edu/~wgarner/math10c/ some time after the exam so you can get a rough idea how you did (by Friday). Exams will be returned in section on Tuesday, May 1 st .
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Math 10C Exam 1 Review Outline 2 2b t 3c P H x L t p H L Section 8.7: Distribution Functions Know the definition of a probability density function (p.d.f.) and how to compute a probability using a p.d.f - ex. After conducting extensive research, the American Automobile Association has discovered that the length of time between tune-ups for minivans is a continuous random variable T , measured in years, and that the probability density function for T is /3 1 9 0i f 0 () if 0 T T fT Te T < = . What is the probability that a minivan will be driven between one and two years between tune-ups? Know the definition of a cumulative density function (c.d.f.) Know what each looks like and their respective properties Know how to tell the differences between a p.d.f. and a c.d.f. - ex. The graphs of the cdf, P ( x ) and pdf, p ( x ) are shown below. Using the properties of a cdf, find the value of c . Using the properties of a pdf, find b . Note: Suppose p ( t ) is the density function for ages in a population, where t is measured in years. p (23) = 0.4. This is not telling us that 40% of the population is precisely age 23. Rather, p (23) = 0.4 does tell us that for some small interval D t around 23, the fraction of the population with ages in this interval is approximately p (23) D t = 0.4 D t .
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This note was uploaded on 08/25/2008 for the course MATH 10C taught by Professor Hohnhold during the Spring '07 term at UCSD.

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exam1review - Math 10C Exam 1 Review Outline Basic...

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