According to The World Bank, only 9% of the population of Uganda hadaccess to electricity as of 2009. Suppose we randomly sample 155 people inUganda. Let X = the number of people who have access to electricity.(a) What is the probability distribution for X?O x~ B(155, 0.09)O x~ G(155)Оxм B(0.09, 155)O x~ G(0.09)O x ~ P(0.09)(b) Using the formulas, calculate the mean and standard deviation of X.(Enter your mean to two decimal places and round your standarddeviation to four decimal places.)mean13.95реoplestandard deviation3.56X people(c) Use your calculator to find the probability that 15 people in thesample have access to electricity. (Round your answer to four decimalplaces.)0.1032(d) Find the probability that at most ten people in the sample haveaccess to electricity. (Round your answer to four decimal places.)0.1666(e) Find the probability that more than 25 people in the sample haveaccess to electricity. (Round your answer to four decimal places.)0.0015Additional MaterialsM eBook The chance of an IRS audit for a tax return with over $25,000 in income isabout 2% per year. We are interested in the expected number of audits aperson with that income has in a 8-year period. Assume each year isindependent.Part (a)In words, define the Random Variable X.O the number of audits a person who has an income over $25,000 receives in a 8-yearperiodo the number of audits the IRS does each yearO the yearly income of a personO the number of audits the IRS does every 8 years for a person who has an incomeover $25,000Correct! This is a numerical measure of the outcome of the study.Part (b)List the values that X may take on.O x= 1, 2, 3, ..., 98, 99, 100O X= 1, 2, 3, ..O x= 0, 1, 2, ., 7, 8O x= 1, 2, 3, ., 7, 8Part (c)Give the distribution of X.X- B- (8 v . 0) - )Part (d)How many audits are expected in a 8-year period? (Round your answer to two decimalplaces.)0.16v auditsPart (e)Find the probability that a person is not audited at all. (Round your answer to four decimalplaces.)0.8507Part (f)Find the probability that a person is audited more than twice. (Round your answer to fourdecimal places.)0.9995Additional MaterialsO eBook

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According to The World Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomly sample 155 people in Uganda. Let X = the number of people who have access to electricity. (a) What is the probability distribution for X? X - B(155, 0.09) X- G(155) O x- B(0.09, 155) O x- G(0.09) O x~ P(0.09) (b) Using the formulas, calculate the mean and standard deviation of X. (Enter your mean to two decimal places and round your standard deviation to four decimal places.) mean 13.95 people standard deviation 3.56 |× people (c) Use your calculator to find the probability that 15 people in the sample have access to electricity. (Round your answer to four decimal places.) 0.1032

According to The World Bank, only 9% of the population of Uganda had access to electricity as of 2009. Suppose we randomly sample 155 people in Uganda. Let X = the number of people who have access to electricity. (a) What is the probability distribution for X? X - B(155, 0.09) X- G(155) O x- B(0.09, 155) O x- G(0.09) O x~ P(0.09) (b) Using the formulas, calculate the mean and standard deviation of X. (Enter your mean to two decimal places and round your standard deviation to four decimal places.) mean 13.95 people standard deviation 3.56 |× people (c) Use your calculator to find the probability that 15 people in the sample have access to electricity. (Round your answer to four decimal places.) 0.1032

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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