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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
2.S.9 To study the spatial distribution of Japanese beetle larvae in the soil, researchers divided a
-foot section of a cornfield into 144 one-foot squares.They counted the number of larvae Y in each square, with the results shown in the following table.56
                             
(a) The mean and standard deviation of Y are
and . s = 1.47Â What percentage of the observations are within
(i) 1 standard deviation of the mean?
(ii) 2 standard deviations of the mean?
(b) Determine the total number of larvae in all 144 squares. How is this number related to ![]()
(c) Determine the median value of the distribution.
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