In incomplete induction, the survey does not cover all the members or all the relevant cases of the class. Some remain unexamined, even when the number investigated is large.
If 100 students in a city all report studying Arabic, that does not prove that every student in the city does so. An unasked student might give a different answer.
“Incomplete” does not mean useless. It means the observations do not logically entail the universal claim with certainty.
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Induction: Complete and Incomplete Enumeration, Certainty and Probability
In incomplete induction, the survey does not cover all the members or all the relevant cases of the class. Some remain unexamined, even when the number investigated is large.
If 100 students in a city all report studying Arabic, that does not prove that every student in the city does so. An unasked student might give a different answer.
“Incomplete” does not mean useless. It means the observations do not logically entail the universal claim with certainty.