400Exam1_S08

400Exam1_S08 - 1 Name _ MTHSC 400 - Exam 1 September 11,...

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Name ___________________________ MTHSC 400 - Exam 1 September 11, 2008 1. (16%) A statistical study showed that 50% of the cars approaching a certain intersection turned left (L), 40% went straight (S) and 10% turned right (R). Assume that two cars are approaching the intersection and they act independently. a. Using pairs of the symbols L, S and R, list the elements in the sample space for the experiment and beside each one give its probability. For example, RS means the first car turns right and the second one goes straight. b. What is the probability that at least one of the cars turns right? c. What is the probability both cars leave the intersection in the same direction? d. What is the probability that both cars turn right given that both cars leave the intersection in the same direction? element probability 1
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2. (24%) ID Tags . The employee ID tag at a certain company consists of a capital letter from A to Z followed by two digits in the range 0 to 9. For example, two possible ID tags are A00 and Z97. a.
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This note was uploaded on 10/11/2010 for the course MTHSC 400 taught by Professor Brawley during the Fall '10 term at Clemson.

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400Exam1_S08 - 1 Name _ MTHSC 400 - Exam 1 September 11,...

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