Therefore, it can be seen that Country Y has a lower income inequality than Country X. Fraction of Richer Population = 1 – 0.30 – 0.60.Fraction of Richer Population = 1 – 0.30.Based on the following information, calculate their Gini coefficient. Let us take the example of two countries (Country X and Country Y) and check which country exhibits higher income inequality. Therefore, the Gini coefficient of the population is 0.341. Gini Coefficient is calculated using the formula given below Score = Fraction of Income * (Fraction of Population + 2 * Fraction of Richer Population) Score is calculated using the formula given below Fraction of Richer Population = 1 – 0.25 – 0.50.Fraction of Richer Population = 1 – 0.25.