Based on U.S.income data from 2008,the top fifth of all families received

Question

Quizplus · Accepted Answer

According to the question, the top fifth of all families received the most income in 2008. The bottom fifth, therefore, received the least amount of income. Based on this, the best choice is D - more than 10 times more income than the bottom fifth. This is because if the top fifth received only 2, 3 or 5 times more income than the bottom fifth, it would not be considered a significant difference. Therefore, the top fifth must have received more than 10 times more income than the bottom fifth to be considered a clear distinction between the two groups.