And her regression line for her sample, if we say that's going to be y is, or y hat is going to be a plus bx. For her sample, a is going to be 127.092, so that's that over there. And for her sample, the slope of the regression line is going to be the coefficient on speed. Another way to think about it, this x variable right over here, speed, so the coefficient on that is the slope. But we have to remind ourselves that these are estimates of maybe some true truth in the universe. If she were able to sample every phone in the market, then she would get the true population parameters. But since this is a sample, it's just an estimate.