mplete the following statements. In general, % of the values in a data set lie at or below the median. % of the values in a data set lie at or below the first quartile (Q1). If a sample consists of 1800 test scores, of them would be at or below the second quartile (Q2). If a sample consists of 1800 test scores, of them would be at or above the third quartile (Q3)..