PBS News Hour reported in 2014 that 39.4% of Americans between the ages of 25 and 64 have at least a two-year college degree.† Assume that 55 Americans between the ages of 25 and 64 are selected randomly. (a) What is the expected number of people with at least a two-year college-degree? (b) What are the variance and standard deviation for the number of people with at least a two-year college degree? (Round your answers to four decimal places.) variancestandard deviation
PBS News Hour reported in 2014 that 39.4% of Americans between the ages of 25 and 64 have at least a two-year college degree.† Assume that 55 Americans between the ages of 25 and 64 are selected randomly. (a) What is the expected number of people with at least a two-year college-degree? (b) What are the variance and standard deviation for the number of people with at least a two-year college degree? (Round your answers to four decimal places.) variancestandard deviation
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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QUESTION 14
PBS News Hour reported in 2014 that 39.4% of Americans between the ages of 25 and 64 have at least a two-year college degree.† Assume that 55 Americans between the ages of 25 and 64 are selected randomly.
(a)
What is the expected number of people with at least a two-year college-degree?
(b)
What are the variance and standard deviation for the number of people with at least a two-year college degree? (Round your answers to four decimal places.)
variancestandard deviation
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