The table shows information about the weekly earnings of 20 people who work in a shop. Weekly earnings (£x) Frequency
150 1
250 < x < 350
11
350 < x < 450
5
450 0
550 < x < 650
3
(a) Work out an estimate for the mean of the weekly earnings.

Consider the following estimates from the early 2010s of shares of income to each group. country poorest 40% next 30% richest 30% bolivia 10 25 65 chile 10 20 70 uruguay 20 30 50 1.) using the 4-point curved line drawing tool, plot the lorenz curve for bolivia. properly label your curve. 2.) using the 4-point curved line drawing tool, plot the lorenz curve for uruguay. properly label your curve.