1.   Find the mode of {325, 100, 115, 621, 325, 325, 100}.
    A. 100 B. 325
    C. 115 D. 273
    Hint

  2.   You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam for a mean of 80?
    A. 80 B. 97
    C. 93 D. 100
    Hint

  3.   Which relationship would most likely have a positive correlation?
    A. the amount of memory in computer, and the number of keys on the keyboard.
    B. the rate at which a train travels, and the time it takes for it to reach its destination.
    C. the number of miles driven, and the number of gallons of gas in the car.
    D. the number of tickets sold for a baseball game, and the number of hotdogs sold at the game.
    Hint

  4.   Make a flowchart for the expression..
    A.
    B.
    C.
    D.
    Hint

  5.   Use the flowchart to backtrack and find the solution.
   
    A. 18 B. 9
    C. 7 D. 8
    Hint

  6.   Which of the following would not be a sample from a population set of all of the farms in Nebraska?
    A. 12 farms are selected from any part of the state.
    B. The farms are split into groups based on what they produce, and then 4 are selected from each group.
    C. One farm is selected in each 20 square mile area of the state
    D. 25 houses with pets are selected from any part of the state.
    Hint

  7.   Find AC.
   
    A. B.
    C. impossible D.
    Hint

  8.   A histogram is a graph in which the data are organized into equal _______.
    A. tallies B. elements
    C. bars D. intervals
    Hint

  9.   What kind of sampling is represented by putting 70 names in a hat and drawing 10 of the names?
    A. Convenience Sampling B. Systematic Sampling
    C. Random Sampling D. Cluster Sampling
    Hint

  10.   Find the mean of the data in the stem-and-leaf plot.
   
    A. 78 B. 77
    C. 99 D. 67
    Hint

  11.   Which relationship will most likely have a negative correlation?
    A. Battery power of a flashlight, and continued use of the flashlight.
    B. Increasing snow inches, and sled sales.
    C. The number of movie tickets sold and the amount of popcorn sold.
    D. A person's height and a person's eye color.
    Hint

  12.   Using the box-and-whisker plot, what is the median of Exam B?
   
    A. 83 B. 90
    C. 60 D. 75
    Hint

  13.   Using the box-and-whisker plot, what is the first quartile of Exam B?
   
    A. 63 B. 83
    C. 72 D. 75
    Hint

  14.   What appears to happen in the graph?
   
    A. Sales have cut in half each month. B. Sales have dropped.
    C. Sales have doubled each month. D. Sales have slightly increased.
    Hint

  15.   Why is the graph misleading?
   
    A. Scale should be smaller. B. Months are out of order.
    C. Scale is not at even intervals. D. The dimensions other than height have changed.
    Hint

  16.   What is A + B?
   
    A. B.
    C. D.
    Hint



Glencoe
The McGraw-Hill Companies