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