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# chapter05_assign - CHAPTER 5 ASSIGNMENT A SURVEY OF...

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CHAPTER 5 ASSIGNMENT A SURVEY OF PROBABILITY CONCEPTS Part I Select the correct answer and write the appropriate letter in the space provided. ______ 1 . Which of the following statements regarding probability is always correct? a . A probability can range from 0 to 1. b . A probability close to 0 means the event is not likely to happen. c . A probability close to 1 means the event is likely to happen. d . all of the above are correct. ______ 2 . According to the classical definition of probability a . All the events are equally likely. b . The probability is based on hunches. c . Divide the number of successes by the number of failures. d . One outcome is exactly twice the other. ______ 3 . The observation of some activity or the act of taking some measurement is called a . an outcome. b . an experiment. c . a probability. d . an event. ______ 4 . The particular result of an experiment is called a . an experiment. b . an event. c . a probability. d . an outcome. ______ 5 . An event is the collection of one or more a . outcomes. b . combinations. c . probabilities. d . experiments. ______ 6 . If A and B are mutually exclusive events then P ( A or B ) equals a . P ( A ) + P ( B ) - P ( A and B ) b . P ( A ) × P ( B ) c . P ( A ) + P ( B ) d . P ( A | B ) + P ( B | A ) ______ 7 . If A and B are independent events, then P ( A and B )) equals a . P ( A ) + P ( B | A ). b . P ( A ) × P ( B ). c . P ( A ) + P ( B ). d . P ( A | B ) + P ( B | A ). ______ 8 . Which formula represents the probability of the complement of event A ? a . 1 + P ( A ) b . 1 - P ( A ) c . P ( A ) d . P ( A ) - 1 ______ 9 . The simultaneous occurrence of two events is called a . prior probability b . subjective probability c . conditional probability d . joint probability ______ 10 . If the probability of an event is 0.3, that means a . the event has a 70% chance of not occurring. b . the complement of the event has a 30% chance of occurring. c . the event has a 30% chance of not occurring.

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chapter05_assign - CHAPTER 5 ASSIGNMENT A SURVEY OF...

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