10, 11, 13, 14, 17, 18, 19, 21, 23.
The median of observations 11, 12, 14, x + 2, x + 4, 23, 25, when arranged in ascending order, is 21. Find the value of x.
A. 16 B. 18
C. 19 D. 20
Arrange the following data in ascending order.
15 | 18 | 16 | 14 | 10 | 6 | 5 | 3 | 8 | 7 |
22 | 18 | 14 | 19 | 17 | 8 | 6 | 4 | 10 | 3 |
12 | 16 | 15 | 13 | 11 | 10 | 18 | 22 | 14 | 19 |
11 | 18 | 22 | 14 | 25 | 21 | 17 | 8 | 9 | 10 |