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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. |
 |
B. |
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C. |
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D. |
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Hint |
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2. |
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. |
23.5 |
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C. |
12 |
D. |
10.5 |
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Hint |
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3. |
What does the dot at 47 represent? |
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A. |
lower quartile |
B. |
upper quartile |
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C. |
median |
D. |
lower extreme |
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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 information is presented in a bar graph. |
B. |
No; The graph is easy to read. |
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C. |
Yes; The vertical axis is not uniform and does not include zero. |
D. |
No; Every store has a price listed. |
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Hint |
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5. |
If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make? |
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A. |
96 |
B. |
20 |
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C. |
192 |
D. |
58 |
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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. |
17,280 |
B. |
1440 |
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C. |
792 |
D. |
95,040 |
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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. |
70 |
B. |
24 |
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C. |
1680 |
D. |
40,320 |
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Hint |
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8. |
Two number cubes are rolled twice. What is the probability of rolling a sum of at least 6 then rolling doubles? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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9. |
The stem-and-leaf plot lists the heights of 37 children. What is the difference between the shortest and tallest child? |
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A. |
32 cm |
B. |
23 cm |
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C. |
39 cm |
D. |
3 cm |
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Hint |
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10. |
Find the interquartile range of
{60, 23, 69, 25, 75, 66, 31, 48, 78, 60}. |
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A. |
69 |
B. |
31 |
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C. |
38 |
D. |
60 |
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Hint |
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11. |
The box-and-whisker plot represents the test scores of 25 students. What percent of the scores were between 65 and 79? |
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A. |
100% |
B. |
25% |
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C. |
75% |
D. |
50% |
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Hint |
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12. |
According to the histogram, how may people were born in October or later in the year? |
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A. |
90 |
B. |
30 |
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C. |
80 |
D. |
110 |
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Hint |
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13. |
According to the histogram, how many more people were born in July than in June? |
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A. |
60 |
B. |
40 |
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C. |
90 |
D. |
30 |
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Hint |
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14. |
Which sentence is a true statement about the data in the graph? |
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A. |
Thursday's income more than doubled Friday's income. |
B. |
Thursday's income was 1.07 times higher than Wednesday'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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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. |
Two number cubes are rolled. Find the odds of a sum less than seven. |
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A. |
7:18 |
B. |
5:7 |
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C. |
1:5 |
D. |
15:36 |
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Hint |
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17. |
Two number cubes are rolled, find the odds of a sum greater than nine. |
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A. |
13:5 |
B. |
1:6 |
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C. |
1:5 |
D. |
1:8 |
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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. |
 |
B. |
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C. |
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D. |
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Hint |
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