T. G. Exter's book Regional Markets, Vol. 2/Households (Ithaca, NY: New Strategist Publications, Inc.) provides information on U.S. households by region of the country. This problem gives data current at the time of the book's publication. One table in the book cross-classifies households by race (of the householder) and region of residence. The table shows that 7.8% of all U.S. households are Hispanic.
a. If race and region of residence are not associated, what percentage of Midwest households would be Hispanic?
b. There are 24.7 million Midwest households. If race and region of residence are not associated, how many Midwest households would be Hispanic?
c. In fact, there are 645 thousand Midwest Hispanic households.
Given this information and your answer to part (b), what can you conclude?