Which option is an example of deductive reasoning?
A. All my friends have been taller than me. Therefore, my next friend
will be taller than me.
O B. All players must roll the dice. Igor is a player, so he must roll the
dice.
O C. All the cherries I've eaten have been sour. Therefore, all cherries
must be sour.
O D. All planes have wings. A jet is a plane, so it must be fast.
Answers
"All players must roll the dice. Igor is a player, so he must roll the dice is an example of deductive reasoning".
Explanation :
Deductive Reasoning: It is a logical process where the conclusion is derived from one or more statements that reach logical reasoning to be true. For easy understanding let's use this formula,
A is equal to B, & B is equal to C, & C is equal to A.
Option A: All my friends are taller than me but we can't say the future friend will be taller. So it is not deductive reasoning.
Option B: Using the above reference, we can say the option B statement is deductive reasoning because the conclusion statement is related to the premise statement.
Option C: All the cherries eaten have been sour but we can't say all cherries must be sour without tasting it.
Option D: Using the above reference, we can say option D is not an example of deductive reasoning because the conclusion statement(So it must be fast) is not related to the premise statement(All planes have wings).
The option that is an example of deductive reasoning is:
All players must roll the dice. Igor is a player, so he must roll the dice. (option B)
What is deductive reasoning?
- Deductive reasoning is the logical conclusion drawn based on some known facts.
- The conclusions drawn must be as per the assumptions which are accepted as true.
- Deductive reasoning is used by everyone in their everyday life to conclude.
- Most conclusions drawn are a consequence of the facts available.
What is inductive reasoning?
- Inductive reasoning is a form of logical reasoning in which a singular fact is broadened to include a large assumption under the same generalization.
- Options A and C are examples of inductive reasoning.
- In options A and C, conclusions are drawn over coincidences and not facts. Moreover, they put an umbrella condition over all other objects. (future friends/cherries respectively)
Option D is an assumption.
Only option B concludes limited and pertaining to the known conditions.
Hence, the correct option is B.All players must roll the dice. Igor is a player, so he must roll the dice.