In a congressional district, 55% of the registered voters are Democrats. Which of
the following is closest to the probability of
getting less than 50% Democrats in a random
sample of size 100?
Is this an example of a sample proportion OR
a sample mean?

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.