1.   Find the mean of {3, 8, 10, 1, 25}.
    A. 9.4 B. 8
    C. 1 D. 9
    Hint

  2.   Which scatter plot shows that x and y have a positive correlation?
    A. B.
    C. D.
    Hint

  3.   Which scatter plot shows that x and y have a positive correlation?
    A. B.
    C. D.
    Hint

  4.   Which scatter plot shows that x and y have a negative correlation?
    A. B.
    C. D.
    Hint

  5.   Which relationship would most likely have a negative correlation?
    A. A person's age, and the address of the person.
    B. The number of miles driven, and the number of gallons of gas in the car.
    C. A person's height and the person's shoe size.
    D. The number of pizzas ordered, and the total price of the bill.
    Hint

  6.   Which relationship would most likely have no correlation?
    A. The number of pizzas ordered, and the total price of the bill.
    B. A person's age, and the address of the person.
    C. The number of miles driven, and the number of gallons of gas in the car.
    D. A person's height and the person's shoe size.
    Hint

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

  8.   Find .
    A.
    B.
    C.
    D.
    Hint

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

  10.   Find the median of the data.
   
    A. 42.5 B. 23
    C. 29.5 D. 19.5
    Hint

  11.   A baseball owner is trying to convince people that he is spending too much on his players. He is paying 10 of them $1 million, 8 of them $2 million, and 3 of them $15 million. To support his case, which measure of central tendency should he use?
    A. mode B. mean
    C. standard deviation D. median
    Hint

  12.   What is the range of the stem-and-leaf plot?
   
    A. 71 B. 67
    C. 84 D. 77
    Hint

  13.   What is the mode of the number of above-temperature days each month?
   
    A. 5 B. 8
    C. 2 D. 6
    Hint

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

  15.   Find the interquartile range of
{61, 65, 65, 66, 72, 75, 77, 79, 81, 85, 89, 92, 99}.
    A. 77 B. 21.5
    C. 35 D. 25
    Hint

  16.   Find the first quartile of the data.
   
    A. 25 B. 91
    C. 19.5 D. 29.5
    Hint

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

  18.   How could the graph be changed so it is not misleading?
   
    A. Diameters of the cans should be the same. B. Color should be added.
    C. Change the vertical scale so that the maximum value is 100. D. Change the graph from vertical to horizontal.
    Hint

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

  20.   What is BC?
   
    A. B.
    C. D.
    Hint



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