81. A study carried out to investigate the distribution of total braking time (reaction time plus accelerator-to-brake movement time, in ms) during real driving conditions at 60 km/hr gave the following summary information on the distribution of times (“A Field Study on Braking Responses during Driving,” Ergonomics, 1995: 1903–1910):

mean
535 median
500 mode
500 sd
96 minimum
220 maximum
925 5th percentile
400 10th percentile
430 90th percentile
640 95th percentile
720 What can you conclude about the shape of a histogram of this data? Explain your reasoning.