Unit test problem at the olympic games, many events have several rounds of competition. one of these events is the men's 1 0 0 100100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 88 finishers in the semifinal round at the 2 0 1 2 20122012 olympics. the lower dot plot shows the times of the same 8 88 swimmers in the final round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.)