| |
| |
1. |
Find the mean of {3, 8, 10, 1, 25}. |
| |
|
A. |
1 |
B. |
9 |
| |
|
C. |
8 |
D. |
9.4 |
| |
|
Hint |
|
| |
2. |
Which relationship would most likely have a positive correlation? |
| |
|
A. |
the amount of memory in computer, and the number of keys on the keyboard. |
| |
|
B. |
the number of tickets sold for a baseball game, and the number of hotdogs sold at the game. |
| |
|
C. |
the rate at which a train travels, and the time it takes for it to reach its destination. |
| |
|
D. |
the number of miles driven, and the number of gallons of gas in the car. |
| |
|
Hint |
|
| |
3. |
What percent of the data is between 62 and 90 for Exam B? |
| |
|
 |
| |
|
A. |
75% |
B. |
100% |
| |
|
C. |
50% |
D. |
25% |
| |
|
Hint |
|
| |
4. |
The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the fourth quarter? |
| |
|
 |
| |
|
A. |
60 |
B. |
48 |
| |
|
C. |
15 |
D. |
27 |
| |
|
Hint |
|
| |
5. |
The circle graph shows the percent of Ms. Jackson's students who earned an ''A'' for each of the four grading periods during a school year. If Ms. Jackson taught 150 total students, how many students earned an ''A'' during the third quarter? |
| |
|
 |
| |
|
A. |
48 |
B. |
60 |
| |
|
C. |
27 |
D. |
15 |
| |
|
Hint |
|
| |
6. |
Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many more students said they have 4 family members in their household than 5? |
| |
|
 |
| |
|
A. |
15 |
B. |
20 |
| |
|
C. |
10 |
D. |
5 |
| |
|
Hint |
|
| |
7. |
Rico took a survey to find out the number of family members in each of his classmates' households. The results of the survey are shown in the graph. How many students responded with an answer of 4 or more family members? |
| |
|
 |
| |
|
A. |
70 |
B. |
50 |
| |
|
C. |
20 |
D. |
45 |
| |
|
Hint |
|
| |
8. |
Which scatter plot shows that x and y have a positive correlation? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
9. |
Find the median of the data. |
| |
|
 |
| |
|
A. |
23 |
B. |
19.5 |
| |
|
C. |
42.5 |
D. |
29.5 |
| |
|
Hint |
|
| |
10. |
Based on the data, how many students scored a B or better? |
| |
|
 |
| |
|
A. |
9 |
B. |
17 |
| |
|
C. |
13 |
D. |
4 |
| |
|
Hint |
|
| |
11. |
What kind of sampling is represented if dentists from random areas of the city are asked about their favorite toothpaste? |
| |
|
A. |
Convenience Sampling |
B. |
Systematic Sampling |
| |
|
C. |
Cluster Sampling |
D. |
Random Sampling |
| |
|
Hint |
|
| |
12. |
Six cars finished an auto race. Which car was the fastest? |
| |
|
 |
| |
|
A. |
C |
B. |
F |
| |
|
C. |
D |
D. |
A |
| |
|
Hint |
|
| |
13. |
What kind of sampling is represented by putting 50 names in a hat and drawing 5 of the names? |
| |
|
A. |
Systematic Sampling |
B. |
Random Sampling |
| |
|
C. |
Convenience Sampling |
D. |
Cluster Sampling |
| |
|
Hint |
|
| |
14. |
Which club has the lowest total membership? |
| |
|
 |
| |
|
A. |
Science |
B. |
Chess |
| |
|
C. |
Computer |
D. |
Yearbook |
| |
|
Hint |
|
| |
15. |
Find the mean of the data in the stem-and-leaf plot. |
| |
|
 |
| |
|
A. |
77 |
B. |
67 |
| |
|
C. |
99 |
D. |
78 |
| |
|
Hint |
|
| |
16. |
Find any outliers in the data shown in the stem-and-leaf plot. |
| |
|
 |
| |
|
A. |
38 |
B. |
55 |
| |
|
C. |
40 |
D. |
10 |
| |
|
Hint |
|
| |
17. |
What best represents the data of 5 test scores in a stem-and-leaf plot? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
18. |
Based on the stem-and-leaf plot, what is the mode? |
| |
|
 |
| |
|
A. |
62 |
B. |
91 |
| |
|
C. |
93 |
D. |
74 |
| |
|
Hint |
|
| |
19. |
Using the line graph, how much more was the price of a gallon of gas in June than September? |
| |
|
 |
| |
|
A. |
$2.70 |
B. |
$0.30 |
| |
|
C. |
$1.50 |
D. |
$1.20 |
| |
|
Hint |
|
| |
20. |
Using the box-and-whisker plot, what is the least value of the data for exam A? |
| |
|
 |
| |
|
A. |
50 |
B. |
45 |
| |
|
C. |
65 |
D. |
83 |
| |
|
Hint |
|
|
|