1.	A best-fit line drawn on a scatter plot ________
		A.	always has a positive slope.
		B.	approximates the linear relationship of data points.
		C.	must be drawn through the first and last data points.
		D.	is a line that goes through every data point.
		Hint
	2.	Choose the scatter plot that has a prediction equation with a negative slope.
		A.		B.
		C.		D.
		Hint
	3.	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
	4.	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.	zero.	B.	negative.
		C.	undefined.	D.	positive.
		Hint
	5.	How do the medians of the two sets of exam scores compare?
		A.	The answer cannot be determined since the median is not shown in a box and whisker plot.
		B.	The medians are equal.
		C.	The median of Exam A is less than the median of Exam B.
		D.	The median of Exam A is greater than the median of Exam B.
		Hint