The knowledge of statistics on HN is astoundingly bad. Figure 1 shows nothing. At all. Without knowing if the results are statistically meaningful, showing a l

The knowledge of statistics on HN is astoundingly bad. Figure 1 shows nothing. At all. Without knowing if the results are statistically meaningful, showing a linear relationship means nothing. You can draw no conclusions from that figure. The only thing it does is lie with data, to imply to an observer that doesn't understand statistics that this means there is a meaningful relationship between the two variables. > I'm not saying their analysis is perfect, but your arguments aren't that strong... They said "SAT and ACT scores are highly predictive of academic performance". This means that they can predict academic performance based on SAT. They absolutely cannot. Their own data shows this beyond any doubt.