Mathematics, 13.12.2019 04:31 niki209
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) 1233 with a standard deviation of 34 years. the distribution of dates was more or less mound-shaped and symmetrical 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 foundbetween and a. d.(b) a range of years centered about the mean in which about 95% of the data (tree-ring dates) will be foundbetween and a. d.(c) a range of years centered about the mean in which almost all the data (tree-ring dates) will be foundbetween and a. d.
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The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
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Graph the line with the given slope m and y-intercept b. m=-3,b=1
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At burnt mesa pueblo, archaeological studies have used the method of tree-ring dating in an effort t...
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