Suppose the payoffs for players A and B, given their respective strategies, are as in the table: 
There is a mixed-strategy Nash equilibrium when Player A chooses Down with probability ____.
Definitions:
Fixed Costs
Costs that do not change with the level of production or sales over a certain period, such as rent or salaries.
Profit
The financial gain obtained when the amount of revenue gained from a business activity exceeds the expenses, costs, and taxes involved in sustaining the activity.
Units
Refers to a standard quantity or measurement used for comparison and calculation, such as in physics or mathematics.
Month
A unit of time, approximately 30 days, used as a standard measurement for billing cycles, budgeting, and financial forecasting.
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