why is sir method better than sir process? what is sir sampling? what is sampling importance why sir sampling is better than is sampling why sir vs isis why is sir sample better than is sampling what is sir sampling what is sir sampling what is sir in math why is sir sampling good? what is sir sampling why sir sampling is useful why sir sampling why sir why sir sampling is better than is sampling is sir sampling a sampling mechanism why is sir sampling effective why sir sampling why sampling importance sampling is better than is? why sir is better than is