John’s parents decide to use the least-squares regression line of John’s height on age based on the data in the previous problem to predict his height at age 21 years (252 months).

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 4GP
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John’s parents recorded his height at various ages up to 66 months. Below is a record of the results.

 

Age (months)   

36

48

54

60

66

Height (inches)

35

38

41

43

45

 

John’s parents decide to use the least-squares regression line of John’s height on age based on the data in the previous problem to predict his height at age 21 years (252 months). We conclude 

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