A teacher says, “The modal mark was 85, so every student passed a test whose pass mark was 50.” Give

Question

A teacher says, “The modal mark was 85, so every student passed a test whose pass mark was 50.” Give a set of four marks showing that this conclusion need not be true.

Accepted Answer

One valid counterexample is $20,85,85,90$.

A counterexample about the mode

A counterexample about the mode

Solution:

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