1.   Find the mean of the set of data
{67, 90, 83, 85, 73, 80, 78, 79, 68, 71}.
    A. 77.4 B. 75.2
    C. 76.9 D. 82.2
    Hint

  2.   What is the mode of the set of data
{67, 90, 83, 85, 73, 80, 78, 79, 68, 71}?
    A. no mode B. 77.4
    C. 67 D. 78.5
    Hint

  3.   In a stem-and-leaf plot, what could 8|1 represent?
    A. 0.81 B. 81
    C. 8100 D. all of these
    Hint

  4.   What is the value of n so that the mean of {n, 3n - 1, 3n, 3n + 1} is 10?
    A. 4 B. 7
    C. -2 D. 6
    Hint

  5.   Use the frequency distribution below of the number of points that a girl's basketball team scored throughout the season to estimate the mean.
   
    A. 65 B. 63
    C. 68 D. 61
    Hint