More statwistics, It says an hour with 50% success rate, but some tasks never get done successfully, so does it mean it can complete 50% of tasks or more likely

More statwistics, It says an hour with 50% success rate, but some tasks never get done successfully, so does it mean it can complete 50% of tasks or more likely, of the 30% of tasks it can complete, it fails 50% of the time? A full day is a long time to wait for feedback and find out it’s wrong, and the. Like 3-4 days is a long time to find out, it will never get your task right in the first place.