1.
A best-fit line drawn on a scatter plot ________
A.
approximates the linear relationship of data points.
B.
always has a positive slope.
C.
must be drawn through the first and last data points.
D.
is a line that goes through every data point.
Hint
2.
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.
negative.
B.
undefined.
C.
positive.
D.
zero.
Hint
3.
What percent of the data is between 62 and 90 for Exam B?
A.
50%
B.
75%
C.
100%
D.
25%
Hint
4.
For which scatter plot will a good line of fit have a negative
y
-intercept?
A.
B.
C.
D.
Hint
5.
Draw a box-and-whisker plot of the data.
A.
B.
C.
D.
Hint