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Mathematics, 02.03.2020 08:10 tomuchsaucecj
At the U. S open tennis championship a statistician keeps track of every serve that a player hits during the tournament. The mean serve speed was 100 miles per hour and the standard deviation of the serve speeds was 15 mph. Assume the distribution of serve speeds was mound shaped and symmetric. What percentage of the playes serves were between 115 a nd 145 mph?
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