1.   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. 97 B. 80
    C. 100 D. 93
    Hint

  2.   The median is the _________ of a set of numbers.
    A. average B. highest number
    C. most frequent D. middle number
    Hint

  3.   Find the range of {5, 21, 2, 14, 13}.
    A. 19 B. 65
    C. 14 D. 13
    Hint

  4.   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 number of miles driven, and the number of gallons of gas in the car.
    C. the rate at which a train travels, and the time it takes for it to reach its destination.
    D. the number of tickets sold for a baseball game, and the number of hotdogs sold at the game.
    Hint

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

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

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

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

  9.   Which of the following is not necessarily considered a part of the population?
    A. census B. biased sample
    C. the data collector D. random sample
    Hint

  10.   What are the dimensions of the matrix?
    A. 6 B. 3 × 2
    C. 2 × 3 D. 4 × 2
    Hint

  11.   Find the mode of {2, 4, 14, 2, 12, 10, 4, 14, 2}.
    A. 4 B. No mode
    C. 14 D. 2
    Hint

  12.   What is the mode of the number of rainy days each month?
   
    A. 7 B. 6
    C. 5 D. 8
    Hint

  13.   Which relationship will most likely have a positive correlation?
    A. Rising temperatures and ski equipment sales.
    B. Battery power of a flashlight, and continued use of the flashlight.
    C. A person's height and a person's eye color.
    D. Increasing snow inches, and sled sales.
    Hint

  14.   Which relationship will most likely have a no correlation?
    A. Increasing snow inches, and sled sales.
    B. Rising temperatures and ski equipment 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.   What is the third quartile of {2, 5, 13, 21, 29}?
    A. 20 B. 27
    C. 25 D. 18
    Hint

  16.   Find the median of the data.
   
    A. 25 B. 29.5
    C. 61 D. 30
    Hint

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

  18.   What appears to happen in the graph?
   
    A. Production has decreased slightly. B. Production has doubled each month.
    C. Production increased each month. D. Production dropped in half each month.
    Hint

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

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



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