CHAPTER 5: DISCRETE PROBABILITY DISTRIBUTIONS

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DISCRETE PROBABILITY DISTRIBUTIONS 5-1. CHAPTER 5: DISCRETE PROBABILITY DISTRIBUTIONS . 1. Thirty-six of the staff of 80 teachers at a local intermediate school are certified in Cardio- Pulmonary Resuscitation (CPR). In 180 days of school, about how many days can we expect that the teacher on bus duty will likely be certified in CPR? a) 5 days b) 45 days c) 65 days d) 81 days ANSWER: d TYPE: MC DIFFICULTY: Moderate KEYWORDS: binomial distribution, mean 2. A campus program evenly enrolls undergraduate and graduate students. If a random sample of 4. students is selected from the program to be interviewed about the introduction of a new fast food outlet on the ground floor of the campus building, what is the PROBABILITY that all 4 students selected are undergraduate students? a) b) c) d) ANSWER: b TYPE: MC DIFFICULTY: Difficult KEYWORDS: binomial distribution 3. A PROBABILITY distribution is an equation that a) associates a particular PROBABILITY of occurrence with each outcome.

14. What type of probability distribution will most likely be used to analyze warranty repair needs on new cars in the following problem? The service manager for a new automobile dealership reviewed dealership records of the past

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