protected function make_new_calculated_question_summary_stat($randomquestioncalculated, $subquestionstats) {
        $question = $randomquestioncalculated->question;
        $slot = $randomquestioncalculated->slot;
        $calculatedsummary = new calculated_question_summary($question, $slot, $subquestionstats);

        return $calculatedsummary;
    }