Answer:
A statistic is a number that describes a sample and a parameter is a number that describes a population.
Step-by-step explanation:
The definition of "statistic" is:
A piece of data from a portion of a population.
The definition of "parameter" is:
A value that tells you something about a population.
Using these definitions, the correct answer to the question is that a statistic is a number that describes a sample and a parameter is a number that describes a population.