A corporation purchased 1,000 shares of its own $5 par common stock at $10 and subsequently sold 500 of the shares at $20. What is the amount of revenue realized from the sale?

In terms of the "great wheel of science", statistics are central to the research process (a) only between the hypothesis phase and the observation phase (b) only between the observation phase and the empirical generalization phase (c) only between the theory phase and the hypothesis phase (d) only between the empirical generalization phase and the theory phase