62. Christmas Trees The diameters of Douglas firs grown at a Christmas tree farm are normally distributed

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62. Christmas Trees The diameters of Douglas firs grown at a Christmas tree farm are normally distributed with a mean of 10 centimeters and a standard deviation of 3.75 centimeters.

a. What proportion of the trees will have diameters between 7.5 and 12.5 centimeters?

b. What proportion of the trees will have diameters less than 7.5 centimeters?

c. Your Christmas tree stand will expand to a diameter of 15 centimeters. What proportion of the trees will not fit in your Christmas tree stand?

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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Question Posted: Sep 05, 2024 05:02 AM

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62. Christmas Trees The diameters of Douglas firs grown at a Christmas tree farm are normally distributed

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Introduction To Probability And Statistics

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