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# ch05 - Ch.5 Probability 5.1 ProbabilityRules 1...

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Ch. 5 Probability 5.1 Probability Rules 1 Understand the Rules of Probability MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following cannot be a probability? A) - 85 B) 0 C) 0.001 D) 2 3 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 2) Identify the sample space of the probability experiment: tossing a coin 3) Identify the sample space of the probability experiment: answering a true or false question 4) Identify the sample space of the probability experiment: tossing four coins and recording the number of heads 5) Identify the sample space of the probability experiment: answering a multiple choice question with A, B, C, and D as the possible answers 6) Identify the sample space of the probability experiment: determining the children ʹ s gender for a family of three children (Use B for boy and G for girl.) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 7) Which of the following probabilities for the sample points A, B, and C could be true if A, B, and C are the only sample points in an experiment? A) P(A) = 0, P(B) = 1/14, P(C) = 13/14 B) P(A) = 1/8, P(B) = 1/7, P(C) = 1/10 C) P(A) = - 1/4, P(B) = 1/2, P(C) = 3/4 D) P(A) = 1/4, P(B) = 1/4, P(C) = 1/4 8) If sample points A, B, C, and D, are the only possible outcomes of an experiment, find the probability of D using the table below. Sample Point A B C D Probability 1/11 1/11 1/11 . A) 8/11 B) 1/11 C) 1/4 D) 3/11 TRUE/FALSE. Write ʹ T ʹ if the statement is true and ʹ F ʹ if the statement is false. 9) The probability that event A will occur is P(A) = Number of successful outcomes Number of unsuccessful outcomes 10) The probability that event A will occur is P(A) = Number of successful outcomes Total number of all possible outcomes Page 126

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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 11) In terms of probability, a(n) ___________________ - is any process with uncertain results that can be repeated. A) Experiment B) Sample space C) Event D) Outcome 12) A(n) _______________ of a probability experiment is the collection of all outcomes possible. A) Sample space B) Event set C) Bernoulli space D) Prediction set 13) True or False: An outcome is any collection of events from a probability experiment. A) True B) False 14) In a 1 - pond bag of skittles the possible colors were red, green, yellow, orange, and purple. The probability of drawing a particular color from that bag is given below. Is this a probability model? Answer Yes or No. Color Probability Red 0.2299 Green 0.1908 Orange 0.2168 Yellow 0.1889 Purple 0.1816 A) Yes B) No 15) A bag contains 25 wooden beads. The colors of the beads are red, blue, white, green, black, brown, and grey. The probability of randomly selecting a bead of a particular color from the bag is given in the below table. Is this a probability mode? Answer yes or No.
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## This note was uploaded on 06/06/2010 for the course EC 11 taught by Professor All during the Spring '10 term at UCLA.

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ch05 - Ch.5 Probability 5.1 ProbabilityRules 1...

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