Marine scientists who study dolphin communication have discovered that bottlenose dolphins exhibit an individualized whistle contour known as their signature whistle. A study was conducted to categorize the signature whistles of 10 captive adult bottlenose dolphins in socially interactive contexts (Ethology, July 1995). A total of 185 whistles were recorded during the study period; each whistle contour was analyzed and assigned to a category by a contour similarity (CS) technique. The results are reported in the table on p. 110. Use a graphical method to summarize the results. Do you detect any patterns in the data that might be helpful to marine scientists?

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Whistle Category Number of Whistles Type a Type b Type c Type d Type e Type f Type g Type h Type i Туре ј Type k Other types 97 15 2 4 13 25