1.	Children in grades one through six are measured for their height. A scatter plot is drawn where the ordered pairs are (grade, height). Which statement will be true?
		A.	The graph will show no relationship between the variables.	B.	The graph will show a positive relationship between the variables.
		C.	The graph will show a negative relationship between the variables.	D.	If a line was drawn approximately through the points, a vertical line would result.
		Hint
	2.	Which situation would result in a scatter plot that shows no relationship?
		A.	age of the head of the household and last digit of phone number	B.	size of house and value
		C.	length of automobile trip and gasoline consumed by vehicle	D.	age and taxes paid over lifetime
		Hint
	3.	Determine whether the scatter plot shows a positive. relationship, negative relationship, or no relationship.
		A.	no relationship	B.	cannot be determined
		C.	negative relationship	D.	positive relationship
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	4.	Determine whether the scatter plot shows a positive relationship, negative relationship, or no relationship.
		A.	negative relationship	B.	positive relationship
		C.	cannot be determined	D.	no relationship
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	5.	The scatter plot shows the relationship between number of weekly meals at fast food restaurants and blood cholesterol level for 25 adults in a correlational study. Describe the independent and dependent variables of the graph and what the graph indicates.
		A.	The independent variable is the number of meals per week at a fast food restaurant. The dependent variable is blood cholesterol level. In the study, people who ate more often at fast food restaurants generally had lower blood cholesterol levels.
		B.	The independent variable is blood cholesterol level. The dependent variable is the number of meals per week at a fast food restaurant. In the study, people who ate more often at fast food restaurants generally had higher blood cholesterol levels.
		C.	The independent variable is blood cholesterol level. The dependent variable is the number of meals per week at a fast food restaurant. In the study, people who ate more often at fast food restaurants generally had lower blood cholesterol levels.
		D.	The independent variable is the number of meals per week at a fast food restaurant. The dependent variable is blood cholesterol level. In the study, people who ate more often at fast food restaurants generally had higher blood cholesterol levels.
		Hint