1.	A best-fit line drawn on a scatter plot ________
		A.	must be drawn through the first and last data points.
		B.	approximates the linear relationship of data points.
		C.	is a line that goes through every data point.
		D.	always has a positive slope.
		Hint
	2.	The scatter plot below shows the women's winning marathon times and the high temperatures on the marathon days. Which prediction equation best shows how marathon times and temperature are related?
		A.		B.
		C.		D.
		Hint
	3.	A best-fit line is drawn on a scatter plot showing the average daily temperature and the number of people at a public swimming pool. The slope of the line would probably be ________
		A.	undefined.	B.	negative.
		C.	positive.	D.	zero.
		Hint
	4.	What percent of the data is between 62 and 90 for Exam B?
		A.	50%	B.	25%
		C.	100%	D.	75%
		Hint
	5.	A line of fit is drawn on a scatter plot showing the number of pets owned by automobile owners and the number of miles driven each month. What would probably be the best description of the slope of this line?
		A.	negative	B.	positive
		C.	zero	D.	undefined
		Hint