Chicken (game) respectively. The line in graph on the left shows the optimum probability of playing the escalated strategy for player Y as a function of "x". The line in the second graph shows the optimum probability of playing the escalated strategy for player X as a function of "y" (the axes have not been rotated, so the dependent variable is plotted on the abscissa, and the independent variable is plotted on the ordinate). The Nash equilibria are where the players' correspondences agree, i.e., cross. These are shown with points in the right hand graph. The best response mappings agree (i.e., cross)
Bit-paired keyboard but bit-paired keyboards have (rows 10, 11, and 13) instead of and are missing the key, as these are shifted values of digits. This is the complete set of symbols on the Model 33; it is notably missing though these are present on other bit-paired keyboards. On both bit-paired and typewriter-paired keyboards, are paired (rows 11, 12, and 13), but on bit-paired keyboards are paired and is an unpaired key, while on typewriter-paired keyboards and are shifted digits, while are paired and is paired with . In the US, bit-paired keyboards continued to be used into the 1970s, including on