Suppose the correlation between the average height of parents and the height of their firstborn male child
Question:
• The average height of all parents is 66 inches.
• The standard deviation of the average height of parents is 4 inches.
• The average height of all male children is 70 inches.
• The standard deviation of the height of all male children is 4 inches.
If a mother and father are 73 and 80 inches tall, respectively, how tall do you predict their son to be? Explain why this is called “regression toward the mean.”
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Related Book For
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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