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Spearman's Rank Coefficient

Fit a trend l...

Question

Fit a trend line to the following data by the method of least squares. Predict the value for the year 2015.
Years 2009 2010 2011 2012 2013
Output 210 212 213 215 217
(tonnes)

A

247.8

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B

246.9

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C

253.8

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D

255.1

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Solution

The correct option is C 253.8
Trend Equation Yt
Substituting the values given in the question you can get the trend values.

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