7. Suppose Jane has a fair 4-sided die, and Dick has a fair 6-sided die. Each day, they roll their dice at the same time (independently) until someone rolls a "1". (Then the person who did not roll a...

Extracted text: 7. Suppose Jane has a fair 4-sided die, and Dick has a fair 6-sided die. Each day, they roll their dice at the same time (independently) until someone rolls a "1". (Then the person who did not roll a "1" does the dishes.) Find the probability that ... X-1 3 P,(x) - :(A) X = 1, 2, 3, ... , 4 у-1 Pp(y) = 6 У- 1, 2, 3, ... . 6 а) they roll the first “1" at the same time (after equal number of attempts);