In a certain factory , the manager monitored the number of defective items his factory produces each day. He listed the following. Number of defective items 0, 1 , 2 ,3 ,4or more Probability 0.62, 0.12, 0.11, 0.10, 0.05 If an inspector comes on a certain day, what is the probability that he finds at most one effective item among the items produced that day? That is ,find the probability of finding one or fewer defective items. Round to 3 decimal places