In a national survey of high school studentsin a national survey of high school students left parenthesis grades 9 to 12 right parenthesis comma(grades 9 to 12), modifying 25 % with underline25% of the students who respondedof the students who responded reported that someone had offered comma sold comma or given them an illegal drug onreported that someone had offered, sold, or given them an illegal drug on schoolschool property. nbspproperty. is the value a parameter or a statistic?

The value is a statistic.

The question states the results of a nation-wide survey.  

In statistics, ‘survey’ refers to an investigation of a sample with the intention of collecting information about the population by using statistical methods. A value that describes a sample is known as a statistic.

A ‘population’, on the other hand, is the whole. It includes every single person who is a part of a group. A value that describes the population is known as a parameter.

In this question, the population consists of all high-school students (grade 9 to grade 12), irrespective of whether they were a part of the survey.

Since the survey essentially works with a sample from the entire population, and the data given in the question (25% of respondents reported that someone had offered, sold, or given them an illegal drug on school property), is derived from (describes) a sample, the given value is a statistic.