FULL SCREEN PRINTER VERSIONBACK Chapter 04, Section 4.5, Problem 74a Incorrect 2

Question

FULL SCREEN PRINTER VERSIONBACK Chapter 04, Section 4.5, Problem 74a Incorrect 2080 randomly selected adults were asked if they think they are financially better off than their parents. The following table gives the two-way classification of the responses based on the education levels of the persons included in the survey and whether they are financially better off, the same, or worse off than their parents. Better off Same Worse off Less Than High School 140 60 200 High School 450 330 300 More Than High School 420 110 70 Suppose one adult is selected at random from these 2080 adults. Find the following probability. Round your answer to three decimal places. P( better off or high schoo! .-. the tolerance is +/-2% SHOW HINT Version 4.24 Privacy Policy (2000-2017 John Wiley & Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc. 26

Explanation / Answer

P(better off or high school)=P(better off)+P(high school)-P(better off and high school)= ((140+450+420)+(450+330+300)-(450))/20180=0.788

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