Answer: The proportion of participant who support each presidential candidate
Step-by-step explanation: Statistic and parameter refers to tow similar but different words whose usage depends on the content of our observations. Parameters are used to define the participant or observations in a population while statistic defines the participants or observations in a sample which is a subset of the population. In the scenario above, the statistic refers to the proportion of people supporting each presidential candidate drawn at random from the total population of eligible voters in the United states.