Problem
Complete 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 third quartile (Q3). If a sample consists of 1000 test scores, quartile (Q2). of them would be at or below the second If a sample consists of 1000 test scores, quartile (Q1). of them would be at or above the first
Solution
Step 1 ：In general, \(\boxed{50\%}\) of the values in a data set lie at or below the median.
Step 2 ：\(\boxed{75\%}\) of the values in a data set lie at or below the third quartile (Q3).
Step 3 ：If a sample consists of 1000 test scores, \(\boxed{500}\) of them would be at or below the second quartile (Q2).
Step 4 ：If a sample consists of 1000 test scores, \(\boxed{750}\) of them would be at or above the first quartile (Q1).
