The figure shows the distribution of trip durations by the number of trips for July 2016 Citibike data. In gray we see the total numbers. In blue, we see the distribution of male riders. In orange, we see the distribution of female riders. While it appears that the number of trips is much less for females than for males, the shape of the distributions themselves look similar. In order to understand if their distributions are significantly different, we'll have to do testing.