which statement describes the best estimate of the sigma square? what is the sigma squared estimate what is the best linear regression what's the sigma squared value in ssy what is the value of ssy and sse in regression how to estimate sigma squared what's the rssy in linear regression? what is the best estimate of sigma squared what is sigma ssy when do ssy sse and sse be the same if beta is 0 would ssy be same as sse when is ssy a good value which of the following is a function of ssy and sse? what is the best linear regression estimate when the slope of the linear model is 0 the sigma squared estimate is when a sigma is 0 is ssy? ssy - dfy linear regression example is beta and ssy the same what does ssy and sse mean if beta is zero? when is ssy and sse the same