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Assume a rule that is one of several methods used to determine the lumber yield of a log (in board-feet) in terms of its diameter d (in inches) and its length L (in feet) . The number of board-feet is . Find the number of board-feet of lumber in a log 46 inches in diameter and 20 feet in length.
Range
The difference between the highest and lowest values in a set of numbers, indicating the spread or dispersion.
Grade Equivalent
A statistical measure used in educational testing to compare a student's performance with the average performance of students at a particular grade level.
Normal Curve
A symmetrical, bell-shaped curve that represents the distribution of many types of data where most scores are near the average.
Standard Deviation
A measure that quantifies the amount of variation or dispersion of a set of data values from the mean.
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