<prompt> The age and sex structure of a population may be best described byLife tableCorrelation coefficientPopulation pyramidBar cha  <response>: The age and sex composition of a country can be best described by population pyramid. Age group from 0-80 is represented in a scale and the male and female population are represented on either side of the population pyramid. Reference: Park;s textbook of preventive and social medicine, 23rd edition, pg no: 482,483 