Maurice Tutor

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About Maurice Tutor

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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 408 Weeks Ago, 3 Days Ago
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Jan 2018 My Price 5.00

diameter–age measurements

Use ta=read.table(”TreeAgeDiamSugarMaple.txt”, header=T) to import the data set of diameter–age measurements for 27 sugar maple trees into the R data frame ta, and x=ta$Diamet; y=ta$Age to copy the diameter and age values into the R objects x and y, respectively.

(a) Would you expect the diameter and age to be positively or negatively correlated? Explain your answer, and confirm it by doing a scatterplot of the data (plot(x,y)).

(b) Compute the sample covariance and linear correlation of diameter and age using R commands. On the basis of the scatterplot are you satisfied that linear correlation correctly captures the strength of the diameter–age dependence?

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Jan 2018 09:01 PM My Price 5.00

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