Among admits, there are small differences in actual test scores especially among whites and Asians.[1] Also, there are racial gaps among actually using SAT prep.[2] Whites may actually be the least likely to use test prep courses depending on which source you look at.[3] I guess if you are applying to Harvard, test prep could actually be pretty significant.
When Harvard makes it decisions, test prep could actually be a major factor in admission there since scores are so close(assuming the numbers you gave). Especially since they try to reach out to people in different regions of the US.
When Harvard makes it decisions, test prep could actually be a major factor in admission there since scores are so close(assuming the numbers you gave). Especially since they try to reach out to people in different regions of the US.
[1]: https://www.thecrimson.com/widget/2018/10/21/sat-by-race-gra...
[2]: https://journals.sagepub.com/doi/abs/10.3102/000283121142560...
[3]: https://marginalrevolution.com/marginalrevolution/2014/03/th...