| Subject | English | Icelandic |
| math. | percentage standard deviation | breytistuðull |
| math. | percentage standard deviation | frávikshlutfall |
| math. | percentage standard deviation | fráviksstuðull |
| comp., MS | standard deviation | staðalfrávik (A statistical measure of the amount by which a set of values differs from the arithmetical mean, equal to the square root of the mean of the differences' squares) |
| math. | standard deviation | staðalfrávik |
| math. | standard deviation | meðalfrávik |
| math. | standard deviation | staðalfrávik úrtaks |