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QuizCh4 - of obtaining at least 6 cases in this class if...

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Math 350 – Quiz Chapter 4 – Discrete Distributions Printed Name: Calculators are allowed on this quiz...neighbors are not ! Show work for credit. 1 4 pts We have 50 reported cases of angina and we want to select 5 for further review. How many ways can we select these cases if order does not matter? 2 Suppose 6 out of 15 students in a grade-school class develop influenza, whereas 20% of grade-school students nationwide develop influenza. A 4 pts Is there evidence of an excessive number of cases in the class? That is, what is the probability
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Unformatted text preview: of obtaining at least 6 cases in this class if the nationwide rate holds true? ............................................................................................................................ B 2 pts What is the expected number of students in the class who will develop influenza? Dr. Emmert Summer 2011 I of I Points Earned of 10...
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