| |
| |
1. |
A bag contains 7 blue marbles, 8 green marbles, 15 red marbles, and 10 yellow marbles. Find the probability of randomly drawing without replacement, a blue marble and then a red. |
| |
|
A. |
 or about 0.2273 |
B. |
 or about 0.0673 |
| |
|
C. |
 or about 0.0438 |
D. |
 or about 0.0656 |
| |
|
Hint |
|
| |
2. |
A box of crayons contains 8 blue, 9 red, and 13 yellow. Find the probability of first choosing a yellow, then a blue, and then another yellow crayon if there is no replacement. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
3. |
A scatter plot is __________. |
| |
|
A. |
a line graph |
B. |
a line graphed in a portion of Quadrant I of the coordinate plane |
| |
|
C. |
a set of data graphed as ordered pairs in a coordinate plane |
D. |
a table of data |
| |
|
Hint |
|
| |
4. |
For which scatter plot will a good line of fit have a negative y-intercept? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
A restaurant manager needs to hire three employees: one host, one server, and one cook. Vito, Kendra, Kale, Sachiko, and Ren all applied for a job. How many possible ways are there for the manager to place the applicants? |
| |
|
A. |
120 |
B. |
12 |
| |
|
C. |
3 |
D. |
60 |
| |
|
Hint |
|
| |
6. |
A briefcase combination lock contains 4 digits. Each digit is a number between 0 and 9. If each number can only be used once, what is the probability that all four digits are odd? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
7. |
How many different two-person teams can be made from 6 people? |
| |
|
A. |
15 |
B. |
360 |
| |
|
C. |
30 |
D. |
120 |
| |
|
Hint |
|
| |
8. |
A bag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. Two marbles are randomly drawn from the bag without replacement. What is the probability of drawing a black marble followed by a red marble? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
9. |
The table shows the results when a number cube was rolled. What is the experimental probability of rolling an even number? |
| |
|
 |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
10. |
The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a number that is less than or equal to three? |
| |
|
 |
| |
|
A. |
|
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
11. |
Suppose three coins are tossed, and each time, they turn up heads. What is the probability that the next toss will be heads? |
| |
|
A. |
0.0625 |
B. |
0.5 |
| |
|
C. |
0.125 |
D. |
0.9375 |
| |
|
Hint |
|
| |
12. |
Which of the graphs will have the lowest standard deviation? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
13. |
Two cubes are rolled. What is the probability that the sum of the numbers is 4 or 7? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
14. |
Compute the variance and standard deviation for the set of {7,7,7,7}. Round to the nearest tenth. |
| |
|
A. |
0; 28 |
B. |
0; 0 |
| |
|
C. |
0; 7 |
D. |
7; 0 |
| |
|
Hint |
|
|
|