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The types of raw materials used to construct stone tools found at an archaeological site are shown below. A random sample of 1486 stone tools

The types of raw materials used to construct stone tools found at an archaeological site are shown below. A random sample of 1486 stone tools were obtained from a current excavation site.

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Raw Material Regional Percent Observed Number of Tools of Stone Tools as Current excavation Site Basalt 61.3% 905 Obsidian 10.6% 154 Welded Tuff 11.4% 182 Pedernal chert 13.1% 201 Other 3.6% 44

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