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Get Full Access to Explorations In College Algebra - 5 Edition - Chapter 2 - Problem 2.11.3
Get Full Access to Explorations In College Algebra - 5 Edition - Chapter 2 - Problem 2.11.3

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# The following equation represents the best-fit regression

ISBN: 9780470466445 178

## Solution for problem 2.11.3 Chapter 2

Explorations in College Algebra | 5th Edition

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Problem 2.11.3

The following equation represents the best-fit regression line for median personal earnings vs. years of education for the 304 people in the FAM1000 data set who live in the southern region of the United States. S 5 15820 1 2960E where S median personal earnings in the South and E years of education past grade 8, and cc 0.51. a. Identify the slope of the regression line, the vertical intercept, and the correlation coefficient. b. What does the slope mean in this context? c. By what amount does this regression line predict that median personal earnings for those who live in the South change for 1 additional year of education? For 10 additional years of education? 4

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Ch. 9 Intelligence What is intelligence  Traditionally – scores on IQ tests  Recently – other dimensions Consensus:  Abstract thinking: capacity to understand hypothetical concepts. Abilities to: o Reason abstractly o Adapt to novel situations o Acquire knowledge o Learn from experience Cultural Differences Galton Model (~1884)  Sensory capacity- better senses acquire more knowledge  Sensory capacities only weakly () related to each other  Measures of sensory ability not highly () related to intelligence NOTE THAT… sensory capacity A strong interactive link between sensory discriminations and intelligence. (Melnick, M. D., Harrison, B. R., Park, S., Bennetto, L., & Tadin, D. (2013)) RESULTS: •

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The following equation represents the best-fit regression