Figure 3From: Bias and imprecision in posture percentile variables estimated from short exposure samples Cumulative probability distributions across the 73 investigated work shifts for the sample standard deviation, s y , of the four assessed posture variables (10 th , 50 th , 90 th percentiles, 10 th -90 th percentile range) for each of the seven sampling durations as marked by colour codes and numbers in each figure.Back to article page