Information on the 30 Major League Baseball teams for the 2013 season has been summarized based on game attendance. What is the probability that if a team is selected at random, it had a winning season? 
Definitions:
Short-Run Costs
Costs that vary depending on the level of production or output in the short term, where some factors of production are fixed.
Zero Economic Profits
A situation in which a firm's total revenues are exactly equal to its total costs, including opportunity costs, indicating neither an economic profit nor loss.
Long-Run Equilibrium
A market state where all producers and consumers have fully adjusted to all changes, and there are no forces causing further adjustments.
Production Costs
The total expense incurred in manufacturing a product or providing a service, including raw materials, labor, and overheads.
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