A researcher interested in vocabulary development obtains a sample of three-year-old children to participate in a research study.The average score for the group of 20 is an example of a parameter.

Question

A researcher interested in vocabulary development obtains a sample of three-year-old children to participate in a research study.The average score for the group of 20 is an example of a parameter.​

Quizplus · Accepted Answer

The average score for the group of 20 three-year-old children is an example of a statistic, not a parameter. A parameter refers to a numerical value that describes a population, while a statistic refers to a numerical value that describes a sample. In this case, the sample is the group of 20 children, and the average score is a statistic that reflects the vocabulary development of that particular sample. A parameter, on the other hand, would refer to the average vocabulary development of all three-year-old children in the population.

A Researcher Interested in Vocabulary Development Obtains a Sample of Three-Year-Old