Concept explainers
(a)
To find the equation of the least squares line for predicting full year change from January change.
(a)

Answer to Problem 64E
Explanation of Solution
It is given that,
The general equation of the regression line is:
The slope of the regression line is:
And the intercept is as:
Thus, the equation of the regression line is:
(b)
To predict the percentage change the entire year without using the least square line.
(b)

Answer to Problem 64E
The predicted height is
Explanation of Solution
It is given that,
Thus, we have,
Thus the predicted height is
Chapter 3 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Additional Math Textbook Solutions
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