Calculate the standard deviation of the following observations using mean method.
| \(x\) | \(2\) | \(4\) | \(6\) | \(8\) | \(10\) | \(12\) | \(14\) | \(16\) |
| \(f\) | 17 | 6 | 4 | 22 | 17 | 14 | 7 | 2 |
Answer:
The standard deviation of the data is.
[Note: Enter the answer rounded to two decimal places.]