Teaching OSSSC TGT Teachers Mock Test Series 2025 Mathematics Statistics Variance and Standard Deviation
The standard deviation of the following distribution
| C.I. | 0 - 6 | 6 - 12 | 12 - 18 |
| fi | 2 | 4 | 6 |
1
\(5 \sqrt{2}\)
2
\(\sqrt{5}\)
3
\(2\sqrt{5}\)
4
20
The standard deviation of the following distribution
| C.I. | 0 - 6 | 6 - 12 | 12 - 18 |
| fi | 2 | 4 | 6 |