Congratulations! You now have a child! (Also, you have a dependent.) What is your tax liability if you file jointly now? Identify how this changes your calculations.

Having a child and filing jointly  will affect the amount Tax payable because up to $300 will be removed from Tax payable for every dependent ( child ) a a joint filer has

Explanation:

Tax liability if you file jointly now ranges from  $600 to $1200 but if you file as an individual your Tax liability will range from $300 to $600. A joint Taxpayer may get up to $300 per child

The amount of money back a Joint filer might get for a child ( as with the new child ) will depend on the gross income and the amount of Tax liability the joint filer have.  therefore having a child and filing jointly  will affect the amount Tax payable because up to $300 will be removed from Tax payable for every dependent ( child ) a a joint filer has .

answer; coefficient of correlation;

answer; by looking at total product,marginal product,and changes in both after changes in inputs