In 1915, the average household in a particular country contained more than four people. In 2007, the average was Smaller Families 2.5. Large families are increasingly rare. The graphs illustrate this trend. Complete parts (a) through (c) below. 30% 25%- 20% if all Households 15% 10%- CO/ . . . a. Use the graphs to estimate the point of intersection. The point of intersection is (Type an ordered pair. Round to the nearest whole number as needed.)