Final answer:
Determining the likelihood of all three activities being completed by the end of day 5 requires the levels of confidence, which need to be multiplied together assuming the events are independent. The specific likelihood cannot be provided without the exact levels of confidence for each activity.
Step-by-step explanation:
The likelihood of all three activities being completed by the end of day 5 can be determined by considering the independence of the activities and their respective levels of confidence for completion. To find the combined probability of all three independent events occurring, you would multiply the probability of each event. However, since the actual levels of confidence (LOC) for each activity are not provided in the question, a specific numerical answer cannot be given. If the LOC percentages were provided, and assuming they are independent, you would convert the LOCs to probabilities (e.g., a 90% confidence level equals a probability of 0.9) and then multiply these probabilities together to find the overall probability that all activities will be completed on time.