Essay
The diameters of the trees in a stand of 100-year-old Ponderosa Pines are normally distributed with a mean of 15 inches and a standard deviation of 4 inches. If only trees with diameters of 8 inches or more are marketable, what proportion of the stand is marketable?
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z =
= -1.75; propo...View Answer
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Correct Answer:
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= -1.75; propo...View Answer
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