Weighted Grader

This shows how to use intervals in a problem.

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Complete Code

Download file: WeightedGrader.pg

POD for Macro Files

PG problem file

Explanation

DOCUMENT();
loadMacros('PGstandard.pl', 'PGML.pl', 'weightedGrader.pl', 'PGcourse.pl');

Preamble

These standard macros need to be loaded. 
install_weighted_grader();

Setup

Call install_weighted_grader(); so that the weighted grader is used.

BEGIN_PGML
* This answer is worth 20%.  Enter 1 [___]{1}{ cmp_options => { weight => 20 } }

* This answer is worth 50%. Enter 3 [___]{3}{ cmp_options => { weight => 50 } }

* This answer is worth 30%. Enter 7 [___]{7}{ cmp_options => { weight => 30 } }
END_PGML

Statement

Assign weights to answers by passing the weight via cmp_options. The example here gives weights as percents that sum to 100, but weights of (2, 5, 3), (4, 10, 6), or (0.2, 0.5, 0.3) would give the same weighting.

BEGIN_PGML_SOLUTION
Solution explanation goes here.
END_PGML_SOLUTION

ENDDOCUMENT();

Solution

A solution should be provided here.