diff --git a/app/views/exercise_collections/statistics.html.slim b/app/views/exercise_collections/statistics.html.slim
index 20b562ef..4b256cdc 100644
--- a/app/views/exercise_collections/statistics.html.slim
+++ b/app/views/exercise_collections/statistics.html.slim
@@ -3,7 +3,16 @@ h1 = @exercise_collection
 = row(label: 'exercise_collections.name', value: @exercise_collection.name)
 = row(label: 'exercise_collections.updated_at', value: @exercise_collection.updated_at)
 = row(label: 'exercise_collections.exercises', value: @exercise_collection.exercises.count)
+= row(label: 'exercise_collections.users', value: @exercise_collection.exercises.joins(:submissions).group("submissions.user_id").count.count)
+= row(label: 'exercise_collections.solutions', value: @exercise_collection.exercises.joins(:submissions).group("submissions.user_id").group("id").count.count)
 = row(label: 'exercise_collections.submissions', value: @exercise_collection.exercises.joins(:submissions).count)
+/ further metrics:
+/   number of users that attempted at least one exercise @exercise_collection.exercises.joins(:submissions).group("submissions.user_id").count.count
+/   number of solutions:                                  @exercise_collection.exercises.joins(:submissions).group("submissions.user_id").group("id").count.count
+/ further filters:
+/     Only before specific date: date = DateTime.parse("2015-01-01 00:00:00.000000") ;  @exercise_collection.exercises.joins(:submissions).where(["submissions.created_at > ?", date]).group("submissions.user_id").count.count
+/     Only with specific cause: @exercise_collection.exercises.joins(:submissions).where("submissions.cause" == 'assess').count
+
 = row(label: 'exercises.statistics.average_worktime', value: @exercise_collection.average_working_time.round(3).to_s + 's')
 
 #graph
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 2b5985ac..477083cf 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -139,7 +139,9 @@ de:
         use_anomaly_detection: "Abweichungen in der Arbeitszeit erkennen"
         updated_at: "Letzte Änderung"
         exercises: "Aufgaben"
+        solutions: "Gesamtanzahl Lösungsversuche"
         submissions: "Gesamtanzahl Submissions"
+        users: "Teilnehmer"
       user_exercise_feedback:
         user: "Autor"
         exercise: "Aufgabe"
@@ -372,7 +374,7 @@ de:
         removeAllOnLine: Meine Kommentare auf dieser Zeile löschen
         listing: Die neuesten Kommentaranfragen
         request: "Kommentaranfrage stellen"
-        question: "Bitte beschreiben Sie kurz ihre Probleme oder nennen Sie den Programmteil, zu dem Sie Feedback wünschen."
+        question: "Bitte beschreiben Sie kurz ihre Probleme oder nennen Sie den Programmteil, zu dem Sie Feedback wünschen. Ihr Programmcode und eventuelle Fehlermeldungen werden automatisch zur Anfrage hinzugefügt."
       rfc_intervention:
         text: "Es scheint so als würden Sie Probleme mit der Aufgabe haben. Wenn Sie möchten, können wir Ihnen helfen!"
       break_intervention:
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 84c4f89f..1f12928c 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -139,7 +139,9 @@ en:
         use_anomaly_detection: "Enable Worktime Anomaly Detection"
         updated_at: "Last Update"
         exercises: "Exercises"
+        solutions: "Solution Attempts (accumulated)"
         submissions: "Submissions (accumulated)"
+        users: "Users"
       user_exercise_feedback:
         user: "Author"
         exercise: "Exercise"
@@ -372,7 +374,7 @@ en:
         removeAllOnLine: Remove my comments on this line
         listing: Listing the newest comment requests
         request: "Request Comments"
-        question: "Please shortly describe your problem or the program part you would like to get feedback for."
+        question: "Please shortly describe your problem or the program part you would like to get feedback for. Your program code and potential error messages are automatically appended to your request."
       rfc_intervention:
         text: "It looks like you may struggle with this exercise. If you like we can help you out!"
       break_intervention: