Asked by Amy

The serum cholesterol levels for men in in one age group are normally distributed with mean of 178.1 and standard deviation of 40.8. All units are in mg/100ml. Find two levels that cut off the top 10% and the bottom 10 % from the distribution of x.
Answered by Kuai

[178.1-1.28(40.8), 178.1+ 1.28(40.8) ] =[ ] ?
Answered by Amy
125.876,218.9?
Answered by Kuai

125.9, 230.3
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