After class a student comments to me, “Once a poll has been taken, (the sample proportion with a certain opinion) is a known value, so it cannot have a distribution of possible values. Therefore, I do not understand what you mean by the sampling distribution of.” Write an explanation for this student. Solution A poll is just one sample of the population. If you took other samples (of the same size) you would get different proportions. The distribution of the proportions of all the samples taken is a sampling distribution..