For each of five different years, the accompanying table gives the percentage of high school students who

Question:

For each of five different years, the accompanying table gives the percentage of high school students who had used cocaine at least once in their lives up to that year:

a. Plot these data on a graph, with the number of years after 1991 on the x axis and the percentage of cocaine users on the y axis.

b. Find the equation of the least-squares line for the data.

c. Use the least-squares line to predict the percentage of high school students who used cocaine at least once by the year 2013.

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Related Book For answer-question

Calculus For Business, Economics And The Social And Life Sciences

ISBN: 9780073532387

11th Brief Edition

Authors: Laurence Hoffmann, Gerald Bradley, David Sobecki, Michael Price

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Question Posted: Jun 24, 2023 08:42 AM

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For each of five different years, the accompanying table gives the percentage of high school students who

Question:

Year Percentage who had used cocaine at least once 1991 1993 1995 1997 1999 2001 2003 2005 2007 6.0 4.9 7.0 8.2 9.5 9.4 8.7 7.6 7.2

Step by Step Answer:

a b Let x be the number of years after 1991 and y the cocaine ...View the full answer

Calculus For Business, Economics And The Social And Life Sciences

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