You Draw It: Family Income vs. College Attendence
Drawing an assumption before evaluating data is a really good approach. Ten points to Griffindor for that one.<p>They said their guess and the data differ the same way as my guess. But then they think the data is correct and they just throw out their guess. That's actually wrong. This point is very important in statistics, but you actually already learn it in 4th or 5th grade math classes. Make a guess about the end result and if your calculated results is quite different be sceptical about your calculated result. Our ability to guess is not good at getting the exact numbers right, but it's really, really good at getting the big picture. Therefore when data and guess disagree there's a really good chance the data is wrong and we must question it and not just our guess (which we can also question, but questioning the data is more important).<p>PS: It's quite funny how often we consume lots of data and calculate a lot and still the right answer to the question is: "Dunno yet"<p>At least for me that's what I learned in the last few years on HN.