The correlation between the height and weight of children aged 6 to 9 is found to be about r = 0.64. Suppose we use the height x of a child to predict the weight y of the child. We conclude that: a.height is generally 64% of a child's weight. b.the least-squares regression line of y on x would have a slope greater than zero. c.about 64% of the time, age will accurately predict weight. d.the fraction of variation in weights explained by the least-squares regression line of weight on height is 0.64.

Answered: e correlation between the height and…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The correlation between the height and weight of children aged 6 to 9 is found to be about r = 0.64. Suppose we use the height x of a child to predict the weight y of the child. We conclude that:

	a.	height is generally 64% of a child's weight.
	b.	the least-squares regression line of y on x would have a slope greater than zero.
	c.	about 64% of the time, age will accurately predict weight.
	d.	the fraction of variation in weights explained by the least-squares regression line of weight on height is 0.64.