A scientist has four petri dishes of different sizes. each dish contains a different number of bacteria. a 3-column table has 4 rows. the first column has entries dish a, dish b, dish c, dish d. the second column is labeled population of bacteria with entries 7,200, 10,000, 13,650, 21,350. the third column is labeled area (millimeters squared) with entries 2,826, 7,850, 20,096, 31,400. find each population density, to the nearest hundredth. which statement is true? dish a has the lowest population density. dish c has the greatest population density. dish a and dish b have approximately the same population density. dish c and dish d have approximately the same population density.