According to the National Center for Education Statistics (2015), scores on a mathematics assessment test for U.S.

Question:

According to the National Center for Education Statistics (2015), scores on a mathematics assessment test for U.S. eighth graders have a mean of 282, a 25th percentile of 258, a 75th percentile of 308, and a 90th percentile of 329. Interpret each of these numerical descriptive measures.