In 1970, 90% of 30-year-olds in a country earned more than their parents did at age 30 (adjusted for inflation). In 2014, only 47% of 30-year-olds in the same country earned more than their parents did at age 30. Complete parts a to d below. (a) What is the probability a randomly selected 30-year-old in 1970 earned more than his or her parents at age 30? The probability is (Round to four decimal places as needed.) (b) What is the probability that two randomly selected 30-year-olds in 1970 earned more than their parents at age 30? The probability is O (Round to four decimal places as needed.) (c) What is the probability that out of ten randomly selected 30-year-olds in 1970, at least one did not earn more than his or her parents at age 30? The probability is (Round to four decimal places as needed.) (d) What is the probability that out of ten randomly selected 30-year-olds in 2014, at least one did not earn more than his or her parents at age 30? The probability isO (Round to four decimal places as needed.)

In 1970, 90% of 30-year-olds in a country earned more than their parents did at age 30 (adjusted for inflation). In 2014, only 47% of 30-year-olds in the same country earned more than their parents did at age 30. Complete parts a to d below. (a) What is the probability a randomly selected 30-year-old in 1970 earned more than his or her parents at age 30? The probability is (Round to four decimal places as needed.) (b) What is the probability that two randomly selected 30-year-olds in 1970 earned more than their parents at age 30? The probability is O (Round to four decimal places as needed.) (c) What is the probability that out of ten randomly selected 30-year-olds in 1970, at least one did not earn more than his or her parents at age 30? The probability is (Round to four decimal places as needed.) (d) What is the probability that out of ten randomly selected 30-year-olds in 2014, at least one did not earn more than his or her parents at age 30? The probability isO (Round to four decimal places as needed.)

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...

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