PART (D). Calculate the least squares Put the equation in the form of hat y =a+bx, (Round your answers to three decimal places) y= _____+______x   PART (E) Find the correlation coefficient r . (Round your answer to four decimal places.) r=   PART (J) What is the slope of the least squares (best-fit) line? (Round your answer to three decimal places.) Interpret the slope. (Round your answer to three decimal places.   As the age increase by the one year, the average height ___________ by ___ centimeters

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PART (D). Calculate the least squares Put the equation in the form of hat y =a+bx, (Round your answers to three decimal places)

y= _____+______x

 

PART (E) Find the correlation coefficient r . (Round your answer to four decimal places.)

r=

 

PART (J) What is the slope of the least squares (best-fit) line? (Round your answer to three decimal places.) Interpret the slope. (Round your answer to three decimal places.

 

As the age increase by the one year, the average height ___________ by ___ centimeters

Below are the average heights for American boys in 1990.

| Age (years) | Height (cm) |
|-------------|-------------|
| Birth       | 50.8        |
| 2           | 83.8        |
| 3           | 91.4        |
| 5           | 106.6       |
| 7           | 119.3       |
| 10          | 137.1       |
| 14          | 157.5       |

This table presents data on the average height of American boys at various ages in 1990, beginning from birth up to 14 years old. Each row in the table lists the age in years and the corresponding average height in centimeters.
Transcribed Image Text:Below are the average heights for American boys in 1990. | Age (years) | Height (cm) | |-------------|-------------| | Birth | 50.8 | | 2 | 83.8 | | 3 | 91.4 | | 5 | 106.6 | | 7 | 119.3 | | 10 | 137.1 | | 14 | 157.5 | This table presents data on the average height of American boys at various ages in 1990, beginning from birth up to 14 years old. Each row in the table lists the age in years and the corresponding average height in centimeters.
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