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1. |
Use the data presented below. The highlighted values are called ________ |
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A. |
backs. |
B. |
plots. |
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C. |
leaves. |
D. |
stems. |
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Hint |
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2. |
Construct a stem-and-leaf plot for the data.
114 101 107 120 93 108 119
127 93 99 114 100 94 125
116 99 101 127 114 110 103 |
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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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3. |
What is the lower quartile of the set of data?
11 21 30 29 7 26
18 12 3 10 12 15 |
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A. |
13.5 |
B. |
12 |
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C. |
10.5 |
D. |
23.5 |
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Hint |
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4. |
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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5. |
A video store has 6 new comedies, 4 new action movies, and 2 new dramas available to rent. If you choose 1 of each type of movie, how many combinations are there? |
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A. |
36 |
B. |
12 |
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C. |
24 |
D. |
48 |
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Hint |
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6. |
How many ways can 5 CDs be selected from a stack of 12 different CDs? |
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A. |
792 |
B. |
1440 |
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C. |
95,040 |
D. |
17,280 |
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Hint |
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7. |
Suppose there are 8 runners in a race. How many ways can awards for 1st, 2nd, 3rd, and 4th places be presented? |
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A. |
24 |
B. |
40,320 |
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C. |
1680 |
D. |
70 |
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Hint |
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8. |
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. |
3:2 |
B. |
9:11 |
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C. |
17:3 |
D. |
11:9 |
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Hint |
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9. |
Using a standard deck of 52 playing cards, one card is randomly picked. What are the odds that the card is a diamond or a 5? |
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A. |
4:9 |
B. |
9:4 |
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C. |
9:13 |
D. |
4:13 |
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Hint |
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10. |
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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11. |
Find the interquartile range of
{60, 23, 69, 25, 75, 66, 31, 48, 78, 60}. |
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A. |
69 |
B. |
38 |
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C. |
31 |
D. |
60 |
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Hint |
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12. |
The box-and-whisker plot represents the test scores of 25 students. What is the upper extreme of the data? |
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A. |
105 |
B. |
55 |
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C. |
100 |
D. |
88.5 |
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Hint |
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13. |
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. |
65 |
B. |
100 |
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C. |
55 |
D. |
79 |
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Hint |
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14. |
According to the histogram, which interval has the most births? |
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A. |
July-September |
B. |
January-March |
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C. |
April-June |
D. |
October-December |
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Hint |
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15. |
According to the histogram, which month has the least births? |
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A. |
March |
B. |
August |
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C. |
October |
D. |
June |
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Hint |
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16. |
Which sentence is a true statement about the data in the graph? |
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A. |
Friday's income was twice Monday's income. |
B. |
Tuesday's income was a 100% increase from Monday's income. |
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C. |
Thursday's income was 1.07 times higher than Wednesday's income. |
D. |
Thursday's income more than doubled Friday's income. |
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Hint |
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17. |
How many different outfits are possible from six shirts, four pairs of pants, and five pairs of socks? |
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A. |
120 |
B. |
15 |
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C. |
60 |
D. |
216 |
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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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