practice_midterm_1211F06

# practice_midterm_1211F06 - W1211 Introduction to Statistics...

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W1211 Introduction to Statistics Midterm Exam Oct 20, 2006 Name (write clearly!): 1. Please print your name in the above space. 2. This is a 2 hr examination. Plan your time accordingly. 3. This is a closed book examination. You are allowed to have a cheat sheet of formulas. You should also have your hand calculator with you. 4. If you do not have enough room for your work in the place provided, use the back of a nearby page. However, be sure to mark clearly which problem the material on the back of the page refers to. If you pull the pages apart, sign all pages. 5. To receive full credit you must make it completely clear how you arrived at your answer. 6. Some problems have several parts. You may be able to answer a part even if you did not answer the preceding parts. Question 1 15 Question 2 15 Question 3 15 Question 4 15 Question 5 20 Question 6 20 Total 100 1

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1. Two fair dice are tossed. Find the probability that their sum is less than 6. 2. The probability density function of a continuous random variable X is given by f ( x ) = 2 x 0 < x < 0 . 5 4 3 - 2 3 x 0 . 5 x < 2 0 otherwise.
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## This note was uploaded on 04/21/2008 for the course STAT 1211 taught by Professor Hernandez during the Spring '08 term at Columbia.

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practice_midterm_1211F06 - W1211 Introduction to Statistics...

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