Question: Consider the density curve shown in Figure 3.4.5, which represents the distribution of diameters (measured 4.5 feet above the ground) in a population of 30-year-old

Consider the density curve shown in Figure 3.4.5, which represents the of diameters (measured 4.5 feet above the ground) in a population of 30-year-old Douglas fir trees. Areas under the curve are shown in the figure. What percentage of the trees have diameters
(a) Between 4 inches and 10 inches?
(b) Less than 4 inches?
(c) More than 6 inches?

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