At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric people lived in the pueblo. Wood from several excavations gave a mean of (year) 1255 with a standard deviation of 40 years. The distribution of dates was more or less mound-shaped and symmetric about the mean. Use the empirical rule to estimate the following. A. A range of years centered about the mean in which about 68% of the data ( tree-ring dates) will be found between______ and ____ A. D> B. A range of years centered about the mean in which about 95% of the data ( tree-ring dates) will be found between ______ and _____ A.D. C. A range of years centered about the mean in which almost all the data ( tree-ring dates) will be found between ______ and _____ A.D.
At Burnt Mesa Pueblo, archaeological studies have used the method of tree-ring dating in an effort to determine when prehistoric people lived in the pueblo. Wood from several excavations gave a
A. A
B. A range of years centered about the mean in which about 95% of the data ( tree-ring dates) will be found between ______ and _____ A.D.
C. A range of years centered about the mean in which almost all the data ( tree-ring dates) will be found between ______ and _____ A.D.
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