每年基本1.7 百万考SAT, 得1600分的有300人,也就是0.018%. (https://blog.prepscholar.com/how-to-get-a-perfect-sat-score-by-a-2400-sat-scorer)
另外,下面这个表的数字基本和0.018%符合。
Old SAT Score | New SAT Score | Percentile |
2400 | 1600 | 99.9826 |
2390 | 1593 | 99.9581 |
2380 | 1587 | 99.9411 |
2370 | 1580 | 99.9157 |
2360 | 1573 | 99.8801 |
2350 | 1567 | 99.8413 |
https://blog.prepscholar.com/sat-percentiles-high-precision-2016
2017年ACT数据, 基于2百万考生。
Score | # of Students | Percentage of All Test Takers |
36 | 2,760 | 0.136% |
35 | 12,386 | 0.610% |
34 | 20,499 | 1.010% |
33 | 26,920 | 1.326% |
Source: ACT.org
https://blog.prepscholar.com/how-many-people-get-a-34-35-36-on-the-act-score-breakdown
两个数据比较一下,大致可以得出结论:ACT满分比SAT满分大致容易十倍。