Stat 350 HW 2.docx

# 95 and there is one data point above 995 so there is

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The upper fence is 9.95 and there is one data point above 9.95 so there is ONE outlier. f) Min: 1.3 , Q1: 2.7 , median: 3.15 , Q3: 5 , max: 10

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g) 4. In early 2013 it was revealed that the Winnipeg Police Service had worked 627 overtime shifts over the last six months specifically for traffic enforcement. The cost to Canadian taxpayers was approximately \$900,000, and some people believe the time and money should be spent on crime prevention instead. An experiment consists of selecting a ticketed car at random and recording: a. Whether the driver has a valid registration. b. Whether the automobile is properly insured. c. The time of day during the traffic stop: morning, afternoon or evening. No work is required on this problem. a) b) Sample space: {VIM, VIE, VIN, VUM, VUE, VUN, RIM, RIE, RIN, RUM, RUE, RUN} 5. A construction crew excavating a site for a building foundation must remove the rock and prepare a trench for concrete footers. An experiment consists of recording the type of rock
present (I, igneous; S, sedimentary; M, metamorphic) and the number of days needed to prepare the site (1 to 3). In addition, they also need to record if there are any archeological sites in the area (A for yes, N for no) Consider the following events. No work is required for this problem. a) A= {S1A, S2A, S3A} B= {I2A,12N, S2A, S2N, M2A, M2N} C= {I1A, I1N, I2A, I2N, I3A, I3N} b) B C= {I2A,12N, S2A, S2N, M2A, M2N, I1A, I1N, I3A, I3N} B C= {I2A, I2N} 6. For the following scenarios, indicate which type of probability the story represents. The
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• Spring '08
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• Probability theory, Quartile

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