Suppose that, in a two-player game, player A can move Up or Down, and player B can choose Left or Right. Payoffs for this game are given in the table: 
There exists a mixed-strategy Nash equilibrium at which Player A plays Up with probability ____.
Definitions:
West Nile Virus
A virus transmitted to humans and animals through the bite of an infected mosquito, known for causing West Nile fever.
Null Hypothesis
A hypothesis that there is no effect or no difference, and it serves as a default hypothesis in statistical hypothesis testing.
Alternative Hypothesis
A statement that suggests there is a statistically significant difference between two or more data sets, contrary to the null hypothesis.
P-value
The likelihood of seeing a test statistic that is as extreme or more so than what was observed, assuming the null hypothesis is correct.
Q1: A Competitive Coup in the In-Flight Magazine.
Q2: What is the difference between applied research
Q7: A restaurant owner is considering refurbishing his
Q42: (Table: Firms 1 and 2 II) The
Q72: Suppose there are four boats available at
Q113: (Table: Payback Period) <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8428/.jpg" alt="(Table: Payback
Q117: Across Country Ski Tours has determined that
Q122: Coca Cola and Polar soda companies are
Q149: Karoun and Kohar hope to be roommates
Q165: (Table: Sports Illustrated and ESPN Magazines I)