The survey plugin does not have any backend UX at the moment to see the survey results. For that, we rely on Data Explorer queries. Example:
-- [params]
-- text :survey_name = survey
SELECT s.id, s.name, s.post_id, sf.question, COALESCE(sr.value, sfo.html) AS value, sr.user_id, sr.created_at as responded_at
FROM surveys s
JOIN survey_fields sf ON sf.survey_id = s.id
JOIN survey_responses sr ON sr.survey_field_id = sf.id
LEFT JOIN survey_field_options sfo ON sfo.id = sr.survey_field_option_id
WHERE s.name = :survey_name
ORDER BY s.id DESC