Questionnaire (plugin)

In file <yourmoodle>mod/questionnaire/questiontypes/questiontypes.class.php, inside function mkresavg(), locate the following two sprintf() functions:

line 1994:

$table->data[] = array(format_text($content, FORMAT_HTML), $out, sprintf('%.1f', $avg));

line 2001:

$avg = sprintf('%.1f', $avg);

and change the %.1 to any value you want for the number of decimals you need, e.g.

sprintf('%.2f', $avg)

will give you 2 decimals, etc.

Joseph

PS.- See attached screenshot showing you where to find the version of your installed modules.