Use the chart below to answer the questions: country population (1997 estimate) area (square km) u. s. 272,648,000 9,364,520 romania 22,609,000 237,391 ghana 18,339,000 237,533 which of these countries has the greatest population density? which has the least? provide an explanation and proof for your answer to receive full credit.

Country          population              area                  (1997 estimate)    (square km)u.s.              272,648,000        9,364,520romania        22,609,000            237,391ghana            18,339,000            237,533population density = population / areapopulation density u.s. = 272,648,000 habitants / 9,364,520 square kmpopulation density u.s. = 29.115 habitants/square kmpopulation density romania = 22,609,000 habitants  / 237,391 square kmpopulation density romania = 95.239 habitants/square kmpopulation density ghana = 18,339,000 habitants  / 237,533 square kmpopulation density ghana = 77.206 habitants/square kmof these countries, romania has the greatest population density (95.239 habitants/square km)of these countries, u.s. has the least population density (29.115 habitants/square km)