Assume the following linear trend forecasting model for the number of passengers travelling by air from 1975

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Assume the following linear trend forecasting model for the number of passengers travelling by air from 1975 to 1986:

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a. Considering that the data has been collected from 1975 to 1986 , explain how the value of \(X\) has been coded to derive the above equation.

b. Construct a table presenting the values of \(X\) and \(Y\) and plot it on the graph.

c. Predict the number of airline travelers in the year 1987.

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