Answer:
A statistic is a numerical characteristic of a sample and a parameter is a numerical characteristic of a population
Step-by-step explanation:
The numerical characteristic of a sample can be a sample mean, which is known as a statistic for that sample. Similarly, the numerical characteristic for a population can be the population mean, which is known as a parameter. Using statistics, we make a guess about a parameter of the whole population based on the statistic of a given sample.
Hence, the correct choice to fill in the blanks is statistic, parameter.
