a. The r2 value of the relationship between literacy and fertility is 0.77. What does that mean?
The value that indicates the strongest relationship is 0.84.
value cannot be negative. It lies between 0 and 1 (included). Higher value indicates stronger relationship. Here 0.84 is the highest value.
is known as the coefficient of determination. It tells us how much variation in the dependent variable is accounted for by the regression model. It is given that the value of the relationship between literacy and fertility is 0.77. This indicates the accuracy of the model. It tells us that 77% of the variation in fertility will be dependent on the literacy. It also suggests that there exists a moderate - strong linear relationship between literacy and fertility.
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