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1. |
Construct a stem-and-leaf plot for the data.
28 32 38 30 31 13 36 35
38 27 14 29 32 28 27 15 |
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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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2. |
A _______ is used to compare two sets of data. |
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A. |
leaf |
B. |
stem-and-leaf plot |
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C. |
back-to-back stem-and-leaf plot |
D. |
stem |
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Hint |
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3. |
Determine the range of the set of data.
11 21 30 29 7 26
18 12 3 10 12 15 |
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A. |
27 |
B. |
16.17 |
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C. |
12 |
D. |
13.5 |
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Hint |
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4. |
What does the dot at 47 represent? |
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 |
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A. |
median |
B. |
lower quartile |
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C. |
upper quartile |
D. |
lower extreme |
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Hint |
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5. |
A number cube is rolled and a coin is tossed. How many different outcomes are possible? |
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A. |
16 |
B. |
8 |
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C. |
6 |
D. |
12 |
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Hint |
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6. |
A vase contains 3 red flowers, 3 violet flowers, 6 pink flowers, and 8 yellow flowers. If one flower is chosen at random, what are the odds that it is not red or yellow? |
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A. |
9:11 |
B. |
11:9 |
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C. |
17:3 |
D. |
3:2 |
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Hint |
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7. |
From a class with 12 boys and 15 girls, one student is selected at random. What are the odds in favor of selecting a girl? |
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A. |
4:9 |
B. |
5:9 |
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C. |
4:5 |
D. |
5:4 |
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Hint |
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8. |
A red number cube and a blue number cube are tossed. Determine the probability of the red number cube showing a 3 and the blue number cube showing a 6. |
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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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9. |
Find the range of
{10, 14, 2, 2, 13, 3, 6, 16, 19, 3}. |
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A. |
7 |
B. |
10 |
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C. |
13 |
D. |
17 |
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Hint |
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10. |
The box-and-whisker plot represents the test scores of 25 students. What percent of the scores were between 88.5 and 65? |
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A. |
25% |
B. |
100% |
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C. |
75% |
D. |
50% |
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Hint |
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11. |
According to the histogram, which interval has the least births? |
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A. |
January-March |
B. |
April-June |
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C. |
July-September |
D. |
October-December |
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Hint |
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12. |
According to the histogram, how many people were born in months before April? |
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A. |
360 |
B. |
140 |
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C. |
90 |
D. |
50 |
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Hint |
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13. |
Which sentence is a true statement about the data in the graph? |
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A. |
Thursday's income was 1.07 times higher than Wednesday's income. |
B. |
Thursday's income more than doubled Friday's income. |
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C. |
Tuesday's income was a 100% increase from Monday's income. |
D. |
Friday's income was twice Monday's income. |
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Hint |
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14. |
Which statement is true? |
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A. |
Wednesday's income was a 33% increase from Friday's income. |
B. |
Wednesday's income was a 24% increase from Monday's income. |
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C. |
Wednesday's income was half of Tuesday's income. |
D. |
Wednesday's income was one-third of Thursday's income. |
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Hint |
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15. |
What is the probability of winning a lottery game where the winning number is made up of three digits from 0 to 9 chosen at random and the numbers may repeat? |
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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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16. |
How many ways can 8 track runners be arranged on a four-person relay team? |
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A. |
40,320 |
B. |
336 |
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C. |
1,680 |
D. |
70 |
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Hint |
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17. |
Find the number of line segments that can be drawn between any two vertices of a hexagon. |
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A. |
30 |
B. |
24 |
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C. |
15 |
D. |
9 |
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Hint |
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18. |
What is the probability of tossing heads on a coin four times in a row? |
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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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