Answer (C) is correct.
Linear regression is based on several assumptions; for example, that
there is no change in the environment, that errors in the values of the
dependent variables are normally distributed with a mean of zero, that
the standard deviation of these errors is constant, that the values of the
dependent variables are statistically independent of each other, and that
the independent variables are not correlated with each other. However,
regression is only a means of predicting the future; it cannot provide