Change Tolerance for Numerical Questions

You can set the tolerance for your numerical questions as a numerical value by adding {tab} and the tolerance value after the answer.

Prerequisites: Numerical Tolerance

Important: In most cases, the default tolerances used in WebAssign (±2% or ±1 at the last significant digit) result in accurate scoring of correct and incorrect answers and should not be changed.

If you change the tolerance for a question, your students' answers might not be scored accurately.

The default tolerance for numerical questions that do not check significant figures or decimal places is ±2%. For numerical questions that do check significant figures or decimal places, the default tolerance is ±1 at the last digit.

Note: Tolerances set in the question are ignored if different tolerance values are set for the sections or assignments for which the question is scheduled.

To set the tolerance as a numerical value:

In Answer, type the following code immediately after the correct numerical answer:

{tab} tolerance

where tolerance is the non-negative numerical tolerance value by which your students' responses can differ from your answer and be considered correct.

For example, to specify an answer of 56 and accept answers between 55.97 and 56.03, type 56 {tab} 0.03.

Note:

To add the {tab} operator, either type the characters {tab} or click Add tab. You cannot enter {tab} by pressing the Tab key.

To specify the tolerance as a percentage of a non-randomized answer, manually calculate the tolerance by multiplying the answer by the percentage tolerance you want to use.

Example Numerical Question With Specified Tolerance

The following table summarizes an actual question.

QID	1159554
Name	Template2 2.NUM.05.
Mode	Numerical
Question	34 + 10 + 5 = <_>
Answer	49 {tab} 0
Display to Students