The accompanying bar graph shows the resident population and the land area of a particular country for selected year from 1800 through 2000. Use the information to complete parts (a)and (b) below. a. Find the population density of the country,to the nearest tenth,in 1900 and in 2000. b. Find the percent increase in population density.to the nearest tenth of a percent, from 1900 to 2000 (4) Click here to view a bar graph showing resident population and the land area of a particular country for selected years from 1800 through 2000 a. The population density, to the nearest tenth, in 1900 was square square (Round to the nearest tenth as needed.) The population density, to the nearest tenth, in 2000 was square square (Round to the nearest tenth as needed.) b. The percent increase in population density from 1900 to 2000 was square % (Round to the nearest tenth as needed.)

To find the population density, we need to divide the population by the land area.<br /><br />a. In 1900, the population was 75 million and the land area was 3.6 million square miles. So, the population density in 1900 was 75 million / 3.6 million = 20.8 people per square mile (rounded to the nearest tenth).<br /><br />In 2000, the population was 300 million and the land area was 3.6 million square miles. So, the population density in 2000 was 300 million / 3.6 million = 83.3 people per square mile (rounded to the nearest tenth).<br /><br />b. To find the percent increase in population density from 1900 to 2000, we need to subtract the population density in 1900 from the population density in 2000, divide the result by the population density in 1900, and then multiply by 100 to get the percentage.<br /><br />The percent increase in population density from 1900 to 2000 was ((83.3 - 20.8) / 20.8) * 100 = 300.0% (rounded to the nearest tenth).<br /><br />So, the answers are:<br />a. The population density, to the nearest tenth, in 1900 was 20.8 people per square mile.<br />The population density, to the nearest tenth, in 2000 was 83.3 people per square mile.<br />b. The percent increase in population density from 1900 to 2000 was 300.0%.