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Practice Set 2: Grid-Ins
Questions 1–4 refer to the following set.

                  Set Q {x, 6, 8, 12, –4, x, 8, 3, x}

1.    In set Q, if x = 7, what is the average of set Q?

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2.    What is one possible integer value for x so that the median of set Q is 3?

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3.    In set Q, if the value of x is 2 greater than the largest numerical value present, what is the range of the set?

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4.    If the average of set Q is 5, what is the mode of set Q?

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Questions 5 and 6 refer to the following graph.



The graph above illustrates the number of births in Country K over a six-year period.

5.    In Country K, the greatest percent change—either increase or decrease—for any two consecutive years is equal to what?

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6.    What is the LEAST percentage change for any two years?

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7.    Two six-sided dice, numbered 1–6 on each, are thrown simultaneously. What is the probability that the sum of the two sides is greater than 9?

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Questions 8 and 9 refer to the following graph.



8.    The amount imported in food is how much greater, in millions of dollars, than the entire amount of goods exported?

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9.    What is the change in dollars between the amount of medicine imported and the amount of iron exported? Grid your answer in millions of dollars.

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10.    The average of five positive integers is 6. No more than two numbers are the same. All numbers are greater than 3 and less than 10. What is one possible value of the mode?

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Questions 11, 12, and 13 refer to the following graph.



11.    According to the graph, what fraction of the entire population for one square mile is composed of giraffes?

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12.    If there is a total of 180,000 gazelles in the savanna, then how many per square mile are endangered?

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13.    If 6 hyenas per square mile are endangered, then how many hyenas, in thousands, are there in the savanna?


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14.    Fonzy is sitting down to a meal of macaroni and cheese. He has four different condiments to choose from: ketchup, picante sauce, Tabasco sauce, and ranch dressing. If he is going to use at least one and no more than four, then how many different combinations of condiments does he have to choose from?

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15.    Ben decides to get an ice cream cone. He is going to choose two toppings out of an available six. Ben also has a choice between a plain cone and a waffle cone. If Ben chooses vanilla ice cream, how many different combinations of toppings and cones does Ben have to choose from?

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