(1 point) In screening donated blood for disease, it is more efficient to test a mix of 6 blood donations and only test individual blood samples if the mix test positive for a disease. If the probability of any single blood sample having any blood disease including anaemia, HIV etc is approximately 0.17. Given this information, find the following probabilities: a. The probability that exactly 4 of the blood samples in the mix of 6 samples will test positive for a blood disease. (give probability to 4 significant digits) b. What is the probability of the mix of 6 blood samples testing positive for a blood disease. (give probability to 4 significant digits)