The figures are invented. The table shows the share of national income received by each fifth of households in Country X, from the poorest to the richest: 4%, 8%, 13%, 22%, 53%. (i) Calculate the cumulative share of income for each fifth. [1] (ii) Construct a fully labelled Lorenz curve for Country X. [3]

HL Paper 3-style short part (standalone practice; not an IB question).