The HIM department listed the following LOS data for the longest admissions for the month of September. What LOS is the 90th percentile? 43, 45, 54, 55, 59, 60, 62, 64, 66, 67, 67, 68, 68, 69, 70, 70, 71, 72, 74, 75

There are 20 scores, so 74 is the one with 90% of the scores below it.