¥Let Ron play row one a fraction p of the time. (Then he plays row two a fraction 1-p of the
time.)
¥Let Charles play column one a fraction q of the time (and
column two 1-q).
¥RonÕs expected winnings (if positive) or losses (if
negative) will be a weighted average of the four possible outcomes, multiplying each
by the fraction of the time it will occur.