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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.

  • statistics -

    [178.1-1.28(40.8), 178.1+ 1.28(40.8) ] =[ ] ?

  • statistics -

    125.876,218.9?

  • statistics -

    125.9, 230.3

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