| |
| |
1. |
The heights in inches of 10 senior boys are 64, 65, 66, 68, 71, 72, 73, 73, 73, and 74. Find the mean of the heights. |
| |
|
A. |
69.9 in. |
B. |
70.0 in. |
| |
|
C. |
69.7 in. |
D. |
69.8 in. |
| |
|
Hint |
|
| |
2. |
Find the mean, median, and mode for {4, 6, 7, 7, 11, 12, 16}. |
| |
|
A. |
7, 9, 7 |
B. |
9, 9, 7 |
| |
|
C. |
9, 7, 7 |
D. |
7, 7, 9 |
| |
|
Hint |
|
| |
3. |
Use the data set {1, 7, 3, 5, 3, 6, 2, 4, 3, 2}. Find the mode. |
| |
|
A. |
4 |
B. |
2 |
| |
|
C. |
3 |
D. |
5 |
| |
|
Hint |
|
| |
4. |
Find the median of –11.1, -10.9, -11 , -11 , -10 , -10.5, -11.25. |
| |
|
A. |
-10.5 |
B. |
-11.1 |
| |
|
C. |
-10.9 |
D. |
-11 |
| |
|
Hint |
|
| |
5. |
Which measures of central tendency are representative of the data?
15, 2, 12, 5, 15, 8, 6, 10 |
| |
|
A. |
mean and median |
B. |
median and mode |
| |
|
C. |
mean and mode |
D. |
mean, median, and mode |
| |
|
Hint |
|
|
|