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1. |
Use the data presented below. The highlighted values are called ________ |
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A. |
leaves. |
B. |
plots. |
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C. |
stems. |
D. |
backs. |
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Hint |
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2. |
What are the stems that would be used in a stem-and-leaf 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. |
0, 1 |
B. |
8, 9, 10, 11 |
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C. |
0, 1, 3, 4, 5, 6, 7, 8, 9 |
D. |
9, 10, 11, 12 |
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Hint |
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3. |
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. |
192 |
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C. |
58 |
D. |
20 |
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4. |
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. |
3:2 |
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C. |
17:3 |
D. |
9:11 |
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Hint |
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5. |
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. |
9:4 |
B. |
9:13 |
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C. |
4:13 |
D. |
4:9 |
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Hint |
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6. |
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. |
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B. |
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C. |
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D. |
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Hint |
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7. |
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. |
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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. |
Find the interquartile range of
{60, 23, 69, 25, 75, 66, 31, 48, 78, 60}. |
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A. |
38 |
B. |
60 |
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C. |
69 |
D. |
31 |
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Hint |
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9. |
Find the interquartile range of
{15, 16, 17, 5, 2, 20, 18, 20, 4, 11, 19, 11, 13}. |
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A. |
18.5 |
B. |
10.5 |
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C. |
15 |
D. |
18 |
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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. |
50% |
B. |
25% |
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C. |
100% |
D. |
75% |
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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 above 50? |
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A. |
25% |
B. |
75% |
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C. |
50% |
D. |
100% |
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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. |
30 |
B. |
20 |
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C. |
40 |
D. |
60 |
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Hint |
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13. |
According to the histogram, how many people were born in months before April? |
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A. |
50 |
B. |
90 |
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C. |
360 |
D. |
140 |
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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. |
Tuesday's income was twice Monday's income. |
B. |
Friday's income was 50% below Thursday's income. |
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C. |
Wednesday's income was a 13% decrease from Tuesday's income. |
D. |
Friday's income was 20% greater than Monday'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 30% higher than Friday's income. |
B. |
Tuesday's income was higher then Monday's income and Friday's income combined. |
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C. |
Tuesday's income was 0.75 times Monday's income. |
D. |
Tuesday's income was 27% higher than Thursday's income. |
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Hint |
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16. |
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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17. |
Find the value of 7!. |
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A. |
28 |
B. |
120 |
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C. |
720 |
D. |
5,040 |
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Hint |
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18. |
How many different ways can four CDs be chosen from a case of 10 CDs? |
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A. |
3,628,800 |
B. |
5,040 |
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C. |
210 |
D. |
120,960 |
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Hint |
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