Hello, I have 3 sets of homework from statistics, all about 8-10 questions each. Subgroups (regression) 2. residual plots 3.

Hello, I have 3 sets of homework from statistics, all about 8-10 questions each. 1. Subgroups (regression) 2. residual plots 3. multiple linear regression~ i need formulas/help to them by 11:45 am pst ~ I understand that it is a short time, and willing to pay~