Lactose Intolerance Affects About 10% of Non-Hispanic White Americans, 50

Multiple Choice

Lactose intolerance affects about 10% of non-Hispanic white Americans, 50% of Hispanic Americans, and 70% of African, Asian, and Native Americans. Seventy-four percent of U.S. residents are non-Hispanic whites, 10% of them are Hispanic, and 11% are African, Asian, or Native American. If a person is selected from this group of people, what is the probability, to four decimal places, that the person will be lactose intolerant? ​

A) Pr(lactose intolerant) = 0.1240
B) Pr(lactose intolerant) = 0.2010
C) Pr(lactose intolerant) = 0.1270
D) Pr(lactose intolerant) = 0.1510
E) Pr(lactose intolerant) = 0.1310