Question

The Sand Canyon Archaeological Project, edited by W. D. Lipe and published by Crow Canyon Archaeological Center, contains the stem-and-leaf diagram shown below. The study uses tree rings to accurately determine the year in which a tree was cut. The figure gives the tree-ring-cutting dates for samples of timbers found in the architectural units at Sand Canyon Pueblo. The text referring to the figure says, "The three-digit numbers in the left column represent centuries and decades A.D. The numbers to the right represent individual years, with each number derived from an individual sample. Thus, 124 2 2 2 represents three samples dated to AD 1242. Use the figure below and the verbal description to answer the following questions. 0173333333333333333333333 5555555555555556 00012222222222222466 (a) Which decade contained the most samples? 1190 12005 12105 1220 1230 12405 1260 1270 (b) How many samples had a tree-ring-cutting date between 1200 AD. and 1239 AD, inclusive? () Find the longest interval during which notre-cutting samples occurred. What is the first year that no tree-cutting samples occurred in that interval 100-120 XAD

Answer 1

# As we see the stem and leat dingum rol which decade contained more Janeler I 1240 s How many samples had a tree ring cutting dh te beta 1200 A.D and 1239 A. inclusive 115 | S๑ ๒๒.๕ longest interval or no tree cutting samples occured. 11204-12 11 IAD The first year that no tree cutting samples occured in that interval [Izoa AO