Blood Donor Testing The American Red Cross tests every unit of donated blood for several infectious diseases, including hepatitis B, hepatitis C, HIV, syphilis, and West Nile virus infection. Blood samples from 16 donors are combined and tested, and all 16 individual samples are approved only if the combined sample passes all tests. If there is 1.4% chance that a random individual fails any of the tests, find the probability that the combined sample is not approved.