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STA 2014 Week 8 Individual Work Solution Correct Answers

Week 8 individual work answers for a statistics course.

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STA 2014 Week 8 Individual WorkSolution Correct AnswersStatisticsSTA 2014Week 8 Individual WorkAssignment InstructionsTo complete this assignment:1.Answer all of the questions below in the space provided.2.Reflect on the informationpresented in this week’s lesson and provide an insightful response toeach question.Save and Submit to Dropbox1.Save your work as a Microsoft Word 2010 (.docx) file that includes your name, course code, andtitle in the file name. For example: JaneSmith_STA2014_Week8.docx.2.To submit your assignment, go to the Dropbox and click "Submit Assignment."3.Click on the drop-down menu to select theWeek 8: Individual Workbasket in the Dropbox.Objective:Interpret probability models for random variables.Section 6.120. Waiting in Line:A Wendy’s manager performed a study to determine a probability distributionfor the number of people, X, waiting in line during lunch. The results were as follows:(a) Verify that this is a discrete probability distribution.(c) Compute andinterpret the mean of the random variable X.(d) Compute the standard deviation of the random variable X.(e) What is the probability that eight people are waiting in line for lunch?Section 6.236. Smokers:According to the American Lung Association, 90% of adult smokers started smokingbefore turning 21 years old. Ten smokers 21 years old or older are randomly selected, and thenumber of smokers who started smoking before 21 is recorded.(a) Explain why this is a binomial experiment.(b)Find and interpret the probability that exactly 8 of them started smoking before 21 years ofage.(c)Find and interpret the probability that fewer than 8 of them started smoking before 21 years ofage.(d)Find and interpret the probability that at least 8 of them started smoking before 21 years ofage.

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Document Details

University
University of Central Florida
Course
STA 2014
Subject
Statistics

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