| A one dimensional plot of a quantitative data set where each value in the data set is represented by a dot above its corresponding location on the x axis. | |
| A sample in which every element in the population has an equal chance of being selected | |
| The middle value with half of the data above and half below it | |
| Experimental results caused by expectations alone; any effect on behavior caused by the administration of an inert substance or condition, which is assumed to be an active agent |