Question: There has been developed a new surgical procedure that is alleged successful in 80% of the time. Suppose eight (8) surgeries are performed on that use this new procedure and the results are independent of each other. Determine the probability of the following events:

a) That the eight (8) surgeries are successful.

b) That exactly five (5) of these surgeries are successful

c) That less than three (3) of these surgeries are successful