A Household Consists of the Following Five Individuals Who Each

Short Answer

A household consists of the following five individuals who each pay different amounts of the rent. Due to this, the system to make household decisions is based on the following voting system: [15: 12,10,4,2] . Looking at all sequential coalition where Player 2 is listed 3^rd , in what proportion of these sequences is Player 1 considered pivotal? Give your answer as a fraction.