Has the performance increased at the same rate

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Question: Kentucky Derby 2006. The fastest horse in Kentucky Derby history was Secretariat in 1973. The scatterplot shows speed (in miles per hour) of the winning horses each year.

97_Kentucky.png

What do you see? In most sporting events, performances have improved and continue to improve, so surely we anticipate a positive direction. But what of the form? Has the performance increased at the same rate throughout the last 130 years?

Reference no: EM131713958

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