According to the U.S. Census Bureau, in 2012, about 68% (.68) of children in the United States were living with both parents, 24.4% (. 244) were living with mother only, 4% (.04) were living with father only, and 3.6% (.036) were not living with either parent. What is the expected value for the number of parents a randomly selected child was living with? Does the concept of expected value have a meaningful interpretation for this example? Explain.