Find out the interval of weights

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The weights of elite marathon runners can be described as being normally distributed with mean 63.2 kg and standard deviation 4.8kg. Use the 68-95-99.7 rule to answer the following questions

? What interval of weights contains 68% of the runners?

? What percentage of runners weigh less than 72.8kg?

? Is it likely to see a runner weigh more than 80kg? Explain why.

Reference no: EM132943920

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