Deductive Reasoning, Inductive Reasoning & Assumption

Every girl loves to go shopping. Therefore, Vale loves to go shopping.

• Deductive

• Inductive

• Assumption

No book in English begins numbering its pages on a left-hand page. This is a book in English, therefore it will begin its numbering on a right-hand page.

• Deductive

• Inductive

• Assumption

My mother is Irish. Everyone from Ireland has blond hair. Therefore, my mother has blond hair.

• Deductive

• Inductive

• Assumption

The teacher used PowerPoint in the last few classes. The teacher uses PowerPoint today. Therefore, the teacher will use PowerPoint tomorrow.

• Deductive

• Inductive

• Assumption

Bon is 17 years old this year. He must be taking SPM.

Why is this an assumption?

• Bon might not be 17 years old

• Bon might not be a Malaysian

• Bon might be a girl

This is an example of an assumption

Ray is a football player. All the other football players on the high school team weigh more than 170 pounds. Therefore, Ray must weigh more than 170 pounds.

• True

• False

Based on a survey of 2200 randomly selected likely voters, 56.2% indicate that they will vote for the incumbent in the upcoming election. Therefore, approximately 56% of the votes in the upcoming election will be for the incumbent.

• Deductive

• Inductive

• Assumption

This is an example of an assumption.

She will win the competition. Most of the judges are her friends.

• True

• False

If this is deductive reasoning. Which of the following are the premise(s)?

• Michael is an athlete

• So, Michael works out in the gym

• All athletes work out in the gym

This is an example of an assumption

Aniey is 20 years old. She must be studying in college now.

• True

• False