# Past Exam for MATH 3342 - Mathematical Statistics for Engineers and Scientists at Texas Tech (TTU)

## Exam Information

 Material Type: Exam 3 Professor: Staff Class: MATH 3342 - Mathematical Statistics for Engineers and Scientists Subject: MATHEMATICS University: Texas Tech University Term: Fall 2004 Keywords: DistributerCircuit BoardsProblem StatementsSeparate PaperRelevant StepsRandomly SelectedQuestion SheetPerformanceAverage HeightCommunications

## Sample Document Text

Math 3342-001 Exam II Make-Up August 2, 2004 Answer the problems on separate paper. You do not need to rewrite the problem statements on your answer sheets. Do your own work. Show all relevant steps which lead to your solutions. Attach this question sheet to the front of your answer sheets. 1. During one stage of an assembly process, a communications chips is soldered on to a circuit board. Typically 20 % of the soldered chips have to be redone. If an inspector randomly selects 14 of the circuit boards, what is the probability that the soldering process will need to be redone for no more than 4 of the circuit boards. 2. A grievance committee of 5 is to be selected from a panel of 6 men and 9 women. What is the probability that the grievance committee will contain a majority of women? 3. The number of cars which pass a check point and have noticeable emissions is 18 per hour on the average. What is the probability that during a 15 minute period there will be at least 8 cars which pass the check ...

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