Question

The table below shows the arm spans (in inches) and the heights (in inches) of 10 randomly selected people.

Arm Span, x	51	52	56	49	54	59	58	55	52	56
Height, y	51	53	54	50	55	57	58	57	52	56

1) Find the standard deviation of errors for this data set. Make sure your answer follows the rounding rule in the direction.

2) Fill in the blank in the following statement. Make sure your answer follows the rounding rule in the direction.

The result in part 1 indicates that among all people with the same arm span, the standard deviation of their heights is   inches. Make sure your answer follows the rounding rule in the direction.

Answer 1

Regression Analysis
	r²	0.840
	r	0.917
	Std. Error	1.165952
	n	10
	k	1
	Dep. Var.	y

1) Find the standard deviation of errors for this data set. Make sure your answer follows the rounding rule in the direction.

Answer: 1

2)

Using excel standard deviation =2.750757

Fill in the blank in the following statement. Make sure your answer follows the rounding rule in the direction.

The result in part 1 indicates that among all people with the same arm span, the standard deviation of their heights is 3 inches. Make sure your answer follows the rounding rule in the direction.