Answer:
The actual relative abundance will be "7.59".
Explanation:
- The residual on something like a curve anywhere at a point becomes expressed as the maximum at either the position between some of the real y-value as well as the expected y-value.
- Consequently, the difference regarding true relative abundance as well as expected relative abundance seems to be 1.25 whether we presume that the x-variable represents rainfall, as well as they-variable, represents the relative abundance of locusts.
The predicted relative abundance for 3 inches rainfall will be:
=

=

The residual will be:
=

=

Now,
The actual relative abundance will be:
=

=

=

Remember that perhaps the residual positive value means that even the calculation underestimates the relative abundance. The real relative abundance, however, is 7.59.