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Mathematics, 29.01.2021 07:40 pilarmonsivais
an article in health magazine suggested getting a dog to encourage more regular walking. A researcher for the article found that the distribution of time spent walking dogs was approximately normally distributed with a mean of 39 minutes per day. However, he also found that 13% of dog owners walk their dogs for less than 20 minutes per day. What is the standard deviation of the time, in minutes, dog owners walk their dog per day?
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an article in health magazine suggested getting a dog to encourage more regular walking. A researche...
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