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1. |
Write the stems that would be used in 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. |
back-to-back stem-and-leaf plot |
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C. |
stem |
D. |
stem-and-leaf plot |
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Hint |
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3. |
Is the graph below misleading? Why or why not? |
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A. |
Yes; The vertical axis is not uniform and does not include zero. |
B. |
Yes; The information is presented in a bar graph. |
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C. |
No; Every store has a price listed. |
D. |
No; The graph is easy to read. |
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Hint |
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4. |
Find P(8, 5). |
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A. |
720 |
B. |
40 |
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C. |
6720 |
D. |
336 |
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Hint |
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5. |
Two number cubes are rolled. What are the odds that the sum of the numbers showing is less than 9? |
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A. |
13:5 |
B. |
13:16 |
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C. |
5:13 |
D. |
5:18 |
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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. |
11:9 |
B. |
9:11 |
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C. |
3:2 |
D. |
17:3 |
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Hint |
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7. |
Fifty tickets, numbered 1 through 50, are placed in a box. Four tickets are randomly drawn without replacement. What is the probability that 4 odd numbers are drawn? |
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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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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. |
17 |
B. |
7 |
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C. |
13 |
D. |
10 |
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Hint |
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10. |
Find the interquartile range of
{15, 16, 17, 5, 2, 20, 18, 20, 4, 11, 19, 11, 13}. |
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A. |
18 |
B. |
15 |
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C. |
18.5 |
D. |
10.5 |
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Hint |
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11. |
The box-and-whisker plot represents the test scores of 25 students. What is the upper quartile of the data? |
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A. |
65 |
B. |
79 |
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C. |
100 |
D. |
88.5 |
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Hint |
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12. |
The box-and-whisker plot represents the test scores of 25 students. Half of the students scored under what number? |
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A. |
100 |
B. |
55 |
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C. |
65 |
D. |
79 |
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Hint |
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13. |
According to the histogram, which interval has the most births? |
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A. |
October-December |
B. |
April-June |
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C. |
July-September |
D. |
January-March |
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Hint |
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14. |
According to the histogram, how many people were born in months before April? |
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A. |
50 |
B. |
140 |
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C. |
360 |
D. |
90 |
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Hint |
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15. |
Which statement is true? |
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A. |
Tuesday's income was a 300% increase from Monday's income. |
B. |
Wednesday's income was a 40% decrease from Tuesday's income. |
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C. |
Friday's income was a 17% decrease from Thursday's income. |
D. |
Thursday's income was a 30% increase from Wednesday's income. |
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Hint |
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16. |
How many different outfits are possible from six shirts, four pairs of pants, and five pairs of socks? |
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A. |
15 |
B. |
60 |
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C. |
216 |
D. |
120 |
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Hint |
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17. |
If three coins are tossed, what is the probability of tossing two heads and one tail? |
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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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18. |
Find the number of line segments that can be drawn between any two vertices of a hexagon. |
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A. |
30 |
B. |
9 |
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C. |
24 |
D. |
15 |
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Hint |
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