Assume that three industrial processes (A,B and C) are independent. If the probability of successfully working for 8 hours is 0.99 for process A, 0.95 for process B and 0.80 for process C, then
a.) What is the probability that all three work successfully for 8 hours?
b.) What is the probability that all three fail to work successfully in these 8 hours?
c.) What is the probability that one or more successfully works for 8 hours?
d.) What is the probability that one or more fails to work successfully for 8 hours?