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Let x be a random variable that represents red blood cell count (RBC) in millions of cells per cubic millimeter of whole blood.

/in /by

Let x be a random variable that represents

red blood cell count (RBC) in millions of cells per cubic millimeter of whole blood. Then x has a distribution that is approximately normal. For the population of healthy female adults, suppose the mean of the x distribution is about 4.68. Suppose that a female patient has taken six laboratory blood tests over the past several months and that the RBC count data sent to the patient’s doctor are as follows.
4.9 4.2 4.5 4.1 4.4 4.3
(i) Use a calculator with sample mean and standard deviation keys to find x and s. (Round your answers to two decimal places.)
What is x=
and what is s=

 
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