I have an older Moodle 2.9.2 site that allows viewing of some detailed information for attempted quizzes. From the left hand menu its under quiz administration > results > statistics. In a newer Moodle site 3.6 I don't see this as an option. Is it still available? Maybe in a different place?
On the front page of the quiz, click the gear icon. There you can get to Results -> Statistics.