A group of 10 people have the following annual incomes: $55,000, $30,000, $15,000, $20,000, $35,000, $80,000, $40,000, $45,000, $30,000, $50,000.
Calculate the percent share of income of each quintile for this group of people.
Calculate the cumulative share of income for this group. (Graphing of a Lorenz Curve is not required)
