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1. |
A _______ is used to compare two sets of data. |
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A. |
stem |
B. |
back-to-back stem-and-leaf plot |
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C. |
leaf |
D. |
stem-and-leaf plot |
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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. |
23.5 |
B. |
12 |
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C. |
10.5 |
D. |
13.5 |
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Hint |
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3. |
Determine the interquartile range for the set of data. |
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A. |
8.5 |
B. |
1.5 |
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C. |
9 |
D. |
10 |
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Hint |
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4. |
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. |
192 |
B. |
96 |
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C. |
20 |
D. |
58 |
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Hint |
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5. |
Four coins are tossed. What is the probability of tossing two heads and two tails in any order? |
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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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6. |
How many ways can 5 CDs be selected from a stack of 12 different CDs? |
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A. |
95,040 |
B. |
1440 |
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C. |
792 |
D. |
17,280 |
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Hint |
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7. |
The spinner below is spun. What are the odds against it landing on green? |
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A. |
1:3 |
B. |
2:3 |
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C. |
1:2 |
D. |
2:1 |
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Hint |
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8. |
There are 5 pennies, 7 nickels, and 9 dimes in a change purse. Suppose 2 coins are selected at random. Find the probability of selecting 2 pennies if the first coin is replaced before the second coin is chosen. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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9. |
The stem-and-leaf plot lists the heights of 37 children. In which interval do most of the heights occur? |
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 |
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A. |
130-139 |
B. |
110-119 |
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C. |
120-129 |
D. |
140-149 |
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Hint |
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10. |
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. |
79 |
B. |
65 |
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C. |
88.5 |
D. |
100 |
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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 extreme of the data? |
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A. |
88.5 |
B. |
100 |
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C. |
55 |
D. |
105 |
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Hint |
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12. |
According to the histogram, how many people were born in December? |
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A. |
60 |
B. |
40 |
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C. |
30 |
D. |
20 |
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Hint |
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13. |
According to the histogram, which monthly amount of births occurred most often? |
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A. |
20 |
B. |
50 |
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C. |
60 |
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. |
Wednesday's income was a 13% decrease from Tuesday's income. |
B. |
Tuesday's income was twice Monday's income. |
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C. |
Friday's income was 20% greater than Monday's income. |
D. |
Friday's income was 50% below Thursday's income. |
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Hint |
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15. |
Choose the correct statement. |
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A. |
Tuesday's income was higher then Monday's income and Friday's income combined. |
B. |
Tuesday's income was 27% higher than Thursday's income. |
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C. |
Tuesday's income was 30% higher than Friday's income. |
D. |
Tuesday's income was 0.75 times Monday's income. |
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Hint |
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16. |
How many ways can a two-color uniform be chosen from red, white, blue, green, and black? |
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A. |
20 |
B. |
120 |
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C. |
25 |
D. |
10 |
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Hint |
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17. |
If an experiment provided positive results on 15 out of 20 trials, what are the odds that the same experiment will provide a positive result on the next trial? |
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A. |
3:1 |
B. |
4:3 |
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C. |
1:3 |
D. |
3:4 |
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Hint |
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18. |
When rolling a pair of number cubes, what is the probability of rolling (1, 1) two times in a row? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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