Based on the X-Culture statistics, what is the average rate of free-riding in X-Culture teams? Every single X-Culture participants always work very hard. On average, there is 1 team member per team whose participation rate is below expectations, but only about 5% of all trainees (8% in non-student professional teams) who fail completely and don't meet their team's expectations. On average, 20^ of the trainees in X-Culture are free-riders. Most X-Culture students do not actively participate in the project, do not communicate with their team and do not their work