Deductive Reasoning • Process of reasoning logically from given statements to a conclusion 1 • Proves through logical equation • Logos 1. www. brightstorm. com
Deduce • All humans are mortal. • Dan Deacon is human. • Dan Deacon is mortal.
Deductive Reasoning Parallelograms are quadrilaterals with two pairs of parallel sides. EFGA is a quadrilateral. EF is parallel to GA. E EG is parallel to AF. F www. brightstorm. com A G
Deductive Reasoning Therefore, EFGA is a parallelogram. G E F www. brightstorm. com A
Inductive Reasoning • Process of making a logical generalization based upon a sample • Observe and conclude • Not full-proof David Hume >
Inductive Reasoning I have a bag of about fifty jelly beans. I take a hand full out. In my hand, five out of the ten jelly beans are red. Therefore, half of the jelly beans in the bag are red.
Inductive Reasoning I have a bag of about fifty jelly beans. I take a hand full out. In my hand, five out of the ten jelly beans are red. I take another six from the bag, but only one of these is red. Therefore, about one third of the bag is red.