i need help for these questions please

UT For a sample of 29 New England cities, a sociologist studies the crime rate in each city (crimes per 100,000 residents) as a function of its poverty rate (in %) and its median income (in $1,000s). He finds that SSE = 4,108,863 and SST = 7,498,067. a. Calculate the standard error of the estimate. (Round your answer to 4 decimal places.) Standard Error 8 00:53:20 b-1. What proportion of the sample variation in crime rate is explained by the variability in the explanatory variables? (Round your answer to 4 decimal places.) Explained proportion b-2. What proportion is unexplained? (Round your answer to 4 decimal places.) Unexplained proportion