(c) What are the mean value and standard deviation of the number of voters who favor the ban? Mean Standard deviation

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 32E

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Question

(c) What are the mean value and standard deviation of the number of voters who favor the ban?
Mean
Standard deviation

Transcribed Image Text:Suppose that 80% of all registered voters in a certain state favor banning the release of information from exit polls in presidential elections until after the polls in that state close. A random sample of 25 registered voters is to be selected. Let x = number of registered voters in this random sample who favor the ban. (Use Table 9 in Appendix A. Round your answers to three decimal places.)

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