| random sample | |
noun | |
| 1. | a sample in which every element in the population has an equal chance of being selected |
| 2. | a sample grabbed at random |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| random sampling | |
noun | |
| the selection of a random sample; each element of the population has an equal chance of been selected |