Japanese Paleolithic are a technology associated in the rest of the world with the beginning of the Neolithic around 10,000 BC. It is not known why such tools were created so early in Japan. Because of this originality, the Japanese Paleolithic period in Japan does not exactly match the traditional definition of Paleolithic based on stone technology (chipped stone tools). Japanese Paleolithic tool implements thus display Mesolithic and Neolithic traits as early as 30,000 BC. The Paleolithic populations of Japan, as well as the later Jōmon populations, appear to relate to an ancient Paleo-Asian group which occupied large parts of Asia before
Mean and predicted response decrease, but the variance of the mean of the formula_19 does shrink with increased sampling, because the variance in formula_21 and formula_22 decrease, so the mean response (predicted response value) becomes closer to formula_23. This is analogous to the difference between the variance of a population and the variance of the sample mean of a population: the variance of a population is a parameter and does not change, but the variance of the sample mean decreases with increased samples. The general linear model can be written as Therefore, since formula_25 the general expression for the variance of the mean response