@wjbyrd That is a great question, but unfortunately, because the actual question groups are not part of a quiz submission, but are mainly used for creating the quiz, they are not available as part of the Quiz Statistics (since the statistics are drawn from the submissions).
You may want to consider including the Learning Outcomes in the question titles to make your statistics easier to analyze. Adding LO1 or LO2 to the front of the question title wouldn't make the titles much longer and they would be easier to identify. Additionally, you could add the learning objective to the actual question content. This would help students see and understand the objectives being assessed by a particular question.