Chapter 04 - CHAPTER FOUR INTRODUCTION TO PROBABILITY...

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CHAPTER FOUR INTRODUCTION TO PROBABILITY MULTIPLE CHOICE QUESTIONS In the following multiple choice questions, circle the correct answer. 1. Of five letters (A, B, C, D, and E), two letters are to be selected at random. How many possible selections are there? a. 20 b. 7 c. 5! d. 10 e. 22 2. Given that event E has a probability of 0.25, the probability of the complement of event E a. can not be determined with the above information b. can have any value between zero and one c. must be 0.75 d. is 0.25 e. None of the above answers is correct. 3. Each individual outcome of an experiment is called a. the sample space b. a sample point c. an experiment d. an individual e. None of the above answers is correct. 4. The collection of all possible sample points in an experiment is a. the sample space b. a sample point c. an experiment d. the population e. None of the above answers is correct. 5. A graphical method of representing the sample points of an experiment is a. a frequency polygon b. a histogram c. an ogive d. a tree diagram e. None of the above answers is correct. 6. An experiment consists of selecting a student body president and vice president. All undergraduate students (freshmen through seniors) are eligible for these offices. How many sample points (possible outcomes as to the classifications) exist? 1
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a. 4 b. 16 c. 8 d. 32 e. None of the above answers is correct. 7. Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female. The number of sample points in this experiment is a. 2 b. 4 c. 6 d. 8 e. None of the above answers is correct. 8. Assume your favorite football team has 2 games left to finish the season. The outcome of each game can be win, lose or tie. The number of possible outcomes is a. 2 b. 4 c. 6 d. 8 e. None of the above answers is correct. 9. Each customer entering a department store will either buy or not buy some merchandise. An experiment consists of following 3 customers and determining whether or not they purchase any merchandise. The number of sample points in this experiment is a. 2 b. 4 c. 6 d. 8 e. None of the above answers is correct. 10. An experiment consists of tossing 4 coins successively. The number of sample points in this experiment is a. 16 b. 8 c. 4 d. 2 e. None of the above answers is correct. 11. Any process that generates well-defined outcomes is a. an event b. an experiment c. a sample point d. all of the above answers are correct e. None of the above answers is correct. 2
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12. The sample space refers to a. any particular experimental outcome b. the sample size minus one c. the set of all possible experimental outcomes d. both a and c are correct e. None of the above answers is correct. 13.
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Chapter 04 - CHAPTER FOUR INTRODUCTION TO PROBABILITY...

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