Question

In: Math

The association between the variables "dollars earned" and "hours worked" for a worker at store would...

The association between the variables "dollars earned" and "hours worked" for a worker at store would be

	a.	POSITIVE
	b.	NEGATIVE
	c.	NEITHER

QUESTION 2

The association between the variables "GPA" and "hours spent studying" for a student would usually be

	a.	POSITIVE
	b.	NEGATIVE
	c.	NEITHER

QUESTION 3

The association between the variables "cost of a book" and "the buyers body temperature" would be

	a.	POSITIVE
	b.	NEGATIVE
	c.	NEITHER

QUESTION 4

The association between the variables "airfare" and "distance to destination" would be

	a.	POSITIVE
	b.	NEGATIVE
	c.	NEITHER

QUESTION 5

A graph that will help to one to see what type of curve might best fit the bivariate data

	a.	Pie chart
	b.	stem-leaf plot
	c.	dot plot
	d.	scatter plot

QUESTION 6

If the correlation coefficient for a linear regression is -0.932. there is sufficient evidence that a linear relationship exists between the x and y data

	a.	TRUE
	b.	FALSE

QUESTION 7

Which of the following correlation coefficients represents the most linear function?

	a.	0.976
	b.	0.001
	c.	-0.002
	d.	-0.989

QUESTION 8

If the correlation coefficient for linear regression is 0.25. there is sufficient evidence that a linear relationship exists between the x and y data

	a.	TRUE
	b.	FALSE

QUESTION 9

A data point that lies statistically far from the regression line is a potential

	a.	response variable
	b.	predictor variable
	c.	extrapolated variable
	d.	outlier

QUESTION 10

correlation5:

If the correlation coefficient is 0.90, the value of the coefficient of determination would be

	a.	0.90
	b.	0.81
	c.	0.45
	d.	0.10

QUESTION 11

Use your TI83 to determine the correlation coefficient of the following set of points. Round correctly to the nearest hundredth.

(4, 4), (-2, -7), (3, 3), (4, -1)

QUESTION 12

Use your TI83 to determine the correlation coefficient of the following set of points. Round correctly to the nearest hundredth.

(4, 4), (-2, -4), (7, -2), (4, 1)

QUESTION 13

Use your TI83 to determine the correlation coefficient of the following set of points. Round correctly to the nearest hundredth.

(2, 4), (1, -1), (2, 2), (5, -4)

Expert Solution

Solution:

milcah answered 2 years ago

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