1- Is there a difference between the strength of an inductive argument and the strength of a deductive argument? Explain.

2-Sherlock Holmes often says he solves cases on the basis of deduction. When he concludes that some person, say Dr. Moriarty, is the murderer, does he draw that conclusion only on the basis of deductive reasoning? Explain.

3-What factors influence the strength of an inductive argument? Explain.

4-Internet web sites often conduct opinion surveys by allowing people to cast a vote while visiting a web page. Would the results be inductively strong or weak? Explain.

5-What is abduction? Explain.

6-Use Mendel's theory of genes to illustrate the difference between induction and abduction. Explain which his theory involves. Then indicate what kind of conclusion his theory would have come to if it had involved only the other.

7-If it makes some true predictions, is that enough to make an abductive inference strong? Explain.

8-What is the surprise principle? What type of reasoning does it pertain to and how does it work? Explain.