1.   Which is the best prediction equation for the data?
   
    A. y = 5x - 19,950 B. y = 20x - 19,950
    C. y = 10x - 19,950 D. y = 25x - 19,950
    Hint

  2.   Use a graphing calculator to find the equation of the regression line.
   
    A. y = 23x - 21,000 B. y = 2x - 25
    C. y = x - 576 D. y = 12x - 23,947
    Hint

  3.   The math scores, x, and chemistry scores, y, for six students are given in the table. Use a graphing calculator to find the Pearson product-moment correlation.
   
    A. about 0.65 B. about 0.74
    C. about 0.71 D. about 0.68
    Hint

  4.   What type of relationship does the scatter plot suggest?
   
    A. no linear relationship
    B. a linear relationship with a positive correlation
    C. a linear relationship with a negative correlation
    D. no correlation
    Hint

  5.   Ilene analyzed her test scores and determined the equation of the best-fit line was y = 4.25x + 72. Predict her score for the 5th test.
    A. 93.25 B. 88.75
    C. 72.5 D. 98.5
    Hint