# Stats

posted by
**Jill**
.

1. The question asks to choose a data point in our graph (we chose 476,44) of median home prices (x) and percentage of students who scored Advanced on math MCAS (y).

We have to find the residual. I'm confused because the equation I was given is e=y-yhat

I know one is the expected value and one is what we got.

What do I plug in for y and what do I plug in for yhat?

The value of Rsquared is .72 on the calculator and if you square it it's .5184. Do I need to do anything with Rsquared or is that not involved in the residual?

2. Explain what residual measures?