INCOME Data: year pct income 1 1960 6.5 0-3 2 1960 8.2 3-5 3 1960 11.3 5-7 4 1960 23.5 7-10 5 1960 15.6 10-12 6 1960 12.7 12-15 7 1960 22.2 15+ 8 1970 4.3 0-3 9 1970 6.0 3-5 10 1970 7.7 5-7 11 1970 13.2 7-10 12 1970 10.5 10-12 13 1970 16.3 12-15 14 1970 42.1 15+ Description: Income distribution (percentages) in the Northeast US in 1960 and 1970. Format: - year year. - pct percentage of population in income class per year. - income income groups. The unit is thousands of constant (1973) US dollars. Task: Model the probability of belonging to the income group.