Johns Hopkins University's 2014 25th-75th percentile SAT Math Scores are 660-770, meaning 25% of students scored 660 or lower on the Math portion of the SAT, and 75% of students scored 770 or lower (i.e. 25% of students scored 770 or higher).
Johns Hopkins University's 2014 25th-75th percentile SAT Writing Scores are 650-750, meaning 25% of students scored 650 or lower on the Writing portion of the SAT, and 75% of students scored 750 or lower (i.e. 25% of students scored 750 or higher).
Johns Hopkins University's 2014 25th-75th percentile ACT Composite Scores are 30-33, meaning 25% of students scored 30 or lower on the ACT Composite Score, and 75% of students scored 33 or lower (i.e. 25% of students scored 33 or higher).
Johns Hopkins University's 2014 25th-75th percentile ACT English Scores are 31-34, meaning 25% of students scored 31 or lower on the ACT English Score, and 75% of students scored 34 or lower (i.e. 25% of students scored 34 or higher).
Johns Hopkins University's 2014 25th-75th percentile ACT Math Scores are 29-34, meaning 25% of students scored 29 or lower on the ACT Math Score, and 75% of students scored 34 or lower (i.e. 25% of students scored 34 or higher).
20th percentile = 16th smallest value 60th percentile = 48th smallest value.
You can't do this without knowing the distribution of scores.
For a complete definition of Percentile see the related link. A percentile is the value of a variable below which a certain percent of observations fallThe 90th percentile is typically the point at which 10 percent of the highest scores fall.If you assume that scores are out of 40, and that they are evenly distributed (an unlikely event in real life), then the 90th percentile is all scores above 36.
75th percentile
Amherst's 2014 25th-75th percentile ACT scores are 31-35 on the English section, 29-34 on the Math section, and 30-34 Composite.
Barnard's 2014 25th-75th percentile ACT scores are 29-34 on the English section, 25-31 on the Math section, and 28-31 Composite.
Baylor's 2014 25th-75th percentile ACT scores are 24-30 on the English section, 24-29 on the Math section, and 24-29 Composite.
Berkeley's 2014 25th-75th percentile ACT scores are 27-34 on the English section, 27-34 on the Math section, and 27-33 Composite.