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1. |
Refer to the set of data below. If 15 were removed from the set of data, which values would change? |
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A. |
range and mean |
B. |
mode |
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C. |
range |
D. |
mean, median, and range |
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Hint |
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2. |
Evaluate (17 + 15) ÷ (5 - 1). |
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A. |
19 |
B. |
32 |
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C. |
8 |
D. |
4 |
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Hint |
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3. |
Evaluate  if a = 9, b = 6 and c = 3. |
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A. |
5 |
B. |
9 |
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C. |
15 |
D. |
11 |
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Hint |
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4. |
Find the mean of {3, 8, 10, 1, 25}. |
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A. |
1 |
B. |
8 |
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C. |
9 |
D. |
9.4 |
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Hint |
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5. |
Which is the correct box-and-whisker plot for the quiz scores? |
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A. |
 |
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B. |
 |
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C. |
 |
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D. |
 |
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Hint |
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6. |
Which is not a reason that measures of central tendency for a set of data can be misleading? |
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A. |
inaccurate data |
B. |
too much data |
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C. |
outliers in the data |
D. |
incomplete data |
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Hint |
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7. |
African elephants can weigh up to 16,500 pounds. They weigh about 1.5 times more than Indian elephants. Use the equation 1.5w = 16,500 to find the weight of the Indian elephant. |
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A. |
14,000 lbs |
B. |
12,500 lbs |
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C. |
8,250 lbs |
D. |
11,000 lbs |
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Hint |
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8. |
Evaluate x + 5y if x = 12 and y = 9. |
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A. |
57 |
B. |
153 |
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C. |
47 |
D. |
71 |
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Hint |
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9. |
Solve 5x = 55. |
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A. |
11 |
B. |
9 |
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C. |
5 |
D. |
12 |
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Hint |
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10. |
Find the mean of {15, 7, 9, 25, 4}. |
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A. |
9 |
B. |
10 |
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C. |
12 |
D. |
13 |
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Hint |
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11. |
The median is the __________ of a set of numbers. |
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A. |
arithmetic average |
B. |
middle number |
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C. |
most frequent number |
D. |
highest number |
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Hint |
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12. |
An automobile dealer wants to sell a certain car for $20,000. If three other dealers in town are selling the same car for $15,000, $15,000, and $30,000, which measure of central should the car dealer use to describe this data to his customers? |
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A. |
mean |
B. |
mode |
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C. |
range |
D. |
median |
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Hint |
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13. |
Find the next term in the sequence
1, 6, 36, 216, |
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A. |
1944 |
B. |
7776 |
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C. |
222 |
D. |
1296 |
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Hint |
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14. |
Solve y = -8 + (-15). |
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A. |
7 |
B. |
-23 |
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C. |
-7 |
D. |
23 |
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Hint |
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15. |
Solve z = -15 - 7. |
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A. |
8 |
B. |
22 |
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C. |
-22 |
D. |
-8 |
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Hint |
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16. |
The table shows how much time Eva spent in a music chat room on the Internet during the week. Which expression cannot be used to find the total number of hours she spent in the chat room? |
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A. |
1.5 + 1.5 + 1.5 + 1 + 1 + 2 |
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B. |
3 × 1.5 + 2 × 1 + 2 |
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C. |
5(1.5 + 1) + 2 |
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D. |
3(1.5) + 2(1) + 2 |
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Hint |
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17. |
On average, letter carriers deliver approximately 670 million pieces of mail each day. About how many pieces of mail do they deliver in 6 days? |
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A. |
4,020 |
B. |
4.02 million |
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C. |
420 billion |
D. |
4.02 billion |
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Hint |
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18. |
Which set of numbers is ordered from least to greatest? |
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A. |
10,100,000; 1.01 × 106; 101,000,000; 1.0 × 107 |
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B. |
10,100,000; 101,000,000; 1.01 × 106; 1.0 × 107 |
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C. |
1.01 × 106; 1.0 × 107; 10,100,000; 101,000,000 |
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D. |
101,000,000; 10,100,000; 1.0 × 107; 1.01 × 106; |
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Hint |
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19. |
The scatter plot shows the number of students per computer in U.S. public schools. Describe the trend shown in the graph. |
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A. |
Their is no relationship between the number of students per computer and the years. |
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B. |
The number of students per computer is decreasing. |
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C. |
The number of students per computer is staying the same. |
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D. |
The number of students per computer is increasing. |
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Hint |
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20. |
Evaluate |-9|. |
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A. |
9 |
B. |
1 |
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C. |
0 |
D. |
-9 |
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Hint |
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