inductive strength

How likely an argument's premises, if true, would make its conclusion.

An inductive argument is strong when, if its premises were true, its conclusion would probably be true, and weak when it would not. Strength comes in degrees, and it is judged by imagining the premises true, just as validity is.

Examples

"99 of 100 tested batteries lasted a year, so the next one will" is strong.
"My one friend who tried it liked it, so everyone will" is weak.