| Giver | Post | Date |
| vs224 | Set A {3,3,3,4,5,5,5} has a standard deviation of 1. | 12-Aug-2019 |
| Manorma | Set A {3,3,3,4,5,5,5} has a standard deviation of 1. | 12-Aug-2019 |
| Giannis89 | Set A {3,3,3,4,5,5,5} has a standard deviation of 1. | 26-Oct-2016 |
| ishan92 | Set A {3,3,3,4,5,5,5} has a standard deviation of 1. | 10-Dec-2015 |
| lolivaresfer | Set A {3,3,3,4,5,5,5} has a standard deviation of 1. | 03-Oct-2014 |