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Marathon runners: carry water for the marathon? yes or nolong races, like a marathon, have hydration stations about 2-3 miles apart. when it comes to getting ready for the big race, runners must decide whether the hydration stations is enough to get them through the race or whether they should carry their own supply of water. some runners believe carrying additional weight (like a water bottle) will slow them down and therefore they decide to rely on the hydration stations along the race. to put this theory to the test, a random sample of 466 marathon runners is selected and various variables are recorded including the runner’s completion time in minutes (variable: runtime) and whether or not the runner carried water during the race (variable: waterload), the data set calledmarathon. rdata contains the information from the 466 marathon runners selected at random.

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