The percentage of students who took all three science courses (34) was lower than the percentage of students who took biology and chemistry (38) and higher than the percentage of students who took just biology or other science courses (28).
NOTE: Detail may not sum to totals because of rounding. Some apparent differences between estimates may not be statistically significant. See complete data.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Science Assessment.