Multiple choice technology testing

One of the fields on a form contains a text box which accepts numeric values in the range of 18 to 25. Identify the invalid Equivalence class

  1. 17

  2. 19

  3. 24

  4. 21
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A Correct answer
Explanation

The range of valid inputs is 18 to 25. An invalid equivalence class consists of values outside this range, specifically less than 18 or greater than 25. Thus, 17 represents an invalid equivalence class value, whereas 19, 21, and 24 represent valid equivalence class values.

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