There is not enough information to give an answer you do not inform us of how much money needs to be put into this pension fund. That information is needed to solve.
The right answer for the question that is being asked and shown above is that: "A data point is 1.3 units above the line of best fit." a residual value of 1.3 mean when referring to the line of best fit of a data set is that <span>A data point is 1.3 units above the line of best fit.</span>