QUESTION $13$

Here is data on Consumption $(Y)$ and Disposable Income $).$ Calculate the coefficient $b.$

$\backslash$table$[[$Consumption$,\backslash$table$[[$Disposible$],[$Income$]]],[12,500,15,625],[12,875,16,094],[13,197,16,496],[13,632,17,040],[13,782,17,228]]$