The red blood cell counts (in millions of cells per microliter) for a population of adult males can be approximated by a normal distribution, with a mean of 5.7 million cells per microliter and a standard deviation of 0.3 million cells per microliter.
(a) What is the minimum red blood cell count that can be in the top 24% of counts?
(b) What red blood cell counts would be considered unusual?
(a) The minimum red blood cell count is million cells per microliter.