We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. 
If the distribution was normally distributed, what is the probability that an observation would be a member of the "400 up to 600" class?
Definitions:
Heparin
An anticoagulant medication used to prevent and treat blood clots, commonly administered intravenously or subcutaneously.
Inflammation
The body's response to injury or infection, marked by redness, warmth, swelling, and sometimes pain.
Deoxyhemoglobin
A type of hemoglobin that is not carrying oxygen. It is darker red in color than hemoglobin.
Carbon Dioxide
Carbon dioxide is a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.
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