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A health researcher has data on the body mass of 1000 male patients. The mean value...

A health researcher has data on the body mass of 1000 male patients.
The mean value is 80kg and the standard deviation is 15kg. Assuming
the values are normally distributed, about how many patients have
body mass between 65 and 95kg (65kg < mass < 95kg)?

math   Statistics-And-Probability   
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