A Sociology student investigated the association between a country's Literacy Rate and Life Expectancy, and then drew
Question:
a) The R2 of 64% means that the Literacy Rate determines 64% of the Life Expectancy for a country.
b) The slope of the line shows that an increase of 5% in Literacy Rate will produce a 2-year improvement in Life Expectancy.
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a R 2 measures the amount of variation accounted for by the model Lite...View the full answer
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Related Book For 
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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