diff --git a/tutorial_page.Rmd b/tutorial_page.Rmd
index 5d49752d6d7106192cc837f96516b88ecad0f5bd..c018cca88dea960c259a578f836cf311f017e559 100644
--- a/tutorial_page.Rmd
+++ b/tutorial_page.Rmd
@@ -105,7 +105,7 @@ gameData$`Mechanics`
 
 ```
 
-*Wie Sie weitere Dateientypen einlesen und benutzen kannst, finden Sie in diesem [Tutorial von Björn Walther](https://bjoernwalther.com/daten-in-r-importieren/)*
+*Wie Sie weitere Dateientypen einlesen und benutzen können, finden Sie in diesem [Tutorial von Björn Walther](https://bjoernwalther.com/daten-in-r-importieren/)*
 
 ### Leerstellen beheben
 
diff --git a/tutorial_page.html b/tutorial_page.html
index c17fdd5a2aae07023ffce878f522a557f0084aac..d502f53b70be0a3e095d7cb71c0c4dd02bc4f29c 100644
--- a/tutorial_page.html
+++ b/tutorial_page.html
@@ -242,7 +242,7 @@ data-diagnostics="1" data-startover="1" data-lines="0"
 data-pipe="|>">
 <pre class="text"><code>gameData$`Mechanics`</code></pre>
 </div>
-<p><em>Wie Sie weitere Dateientypen einlesen und benutzen kannst, finden
+<p><em>Wie Sie weitere Dateientypen einlesen und benutzen können, finden
 Sie in diesem <a
 href="https://bjoernwalther.com/daten-in-r-importieren/">Tutorial von
 Björn Walther</a></em></p>
@@ -1228,19 +1228,19 @@ learnr:::store_exercise_cache(structure(list(label = "replace-special-chars", gl
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "second-quiz-1", 
     question = structure("Mit welchem R-Befehl lassen sich Packages installieren?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_1566a39", 
+    "character")), answers = list(structure(list(id = "lnr_ans_b3b3b08", 
         option = "install.packages()", value = "install.packages()", 
         label = structure("install.packages()", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_b0edff0", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_32848a1", 
         option = "add.packages()", value = "add.packages()", 
         label = structure("add.packages()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_f80465b", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_a02f92e", 
         option = "install.library()", value = "install.library()", 
         label = structure("install.library()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_71aef76", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_319adee", 
         option = "install()", value = "install()", label = structure("install()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
     "tutorial_quiz_answer"))), button_labels = list(submit = structure("<span data-i18n=\"button.questionsubmit\">Submit Answer<\u002fspan>", html = TRUE, class = c("html", 
@@ -1251,7 +1251,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "second-quiz-1-answer", question = "second-quiz-1"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 637017036.703366, options = list()), class = c("learnr_radio", 
+    seed = 1432656865.83287, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
 
@@ -1259,16 +1259,16 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "second-quiz-2", 
     question = structure("Mit welchem R-Befehl lassen sich die installierten Packages initialisieren?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_a2e794d", 
+    "character")), answers = list(structure(list(id = "lnr_ans_4b23e86", 
         option = "use()", value = "use()", label = structure("use()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_f9169d7", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_9186eff", 
         option = "library()", value = "library()", label = structure("library()", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_9815071", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_815bf9a", 
         option = "init()", value = "init()", label = structure("init()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_ad51d4f", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_d6009cf", 
         option = "install.packages()", value = "install.packages()", 
         label = structure("install.packages()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1280,23 +1280,23 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "second-quiz-2-answer", question = "second-quiz-2"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1625983262.74284, options = list()), class = c("learnr_radio", 
+    seed = 134181754.437517, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
  
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "second-quiz-3", 
     question = structure("Welcher Packet benutzen wir, um XLSX-Dateien zu lesen?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_2f69ac3", 
+    "character")), answers = list(structure(list(id = "lnr_ans_7af3d2b", 
         option = "readxl()", value = "readxl()", label = structure("readxl()", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_d998b62", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_a15d56d", 
         option = "readxls()", value = "readxls()", label = structure("readxls()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_7be87fc", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_5e7085b", 
         option = "readexcel()", value = "readexcel()", label = structure("readexcel()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_20aac7b", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_d0af678", 
         option = "excelread()", value = "excelread()", label = structure("excelread()", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
     "tutorial_quiz_answer"))), button_labels = list(submit = structure("<span data-i18n=\"button.questionsubmit\">Submit Answer<\u002fspan>", html = TRUE, class = c("html", 
@@ -1307,7 +1307,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "second-quiz-3-answer", question = "second-quiz-3"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 349725907.337146, options = list()), class = c("learnr_radio", 
+    seed = 2083917251.5296, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
 
@@ -1315,19 +1315,19 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "second-quiz-4", 
     question = structure("Wie lassen sich einzelne Spalten aus dem Datensatz auslesen?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_db23f06", 
+    "character")), answers = list(structure(list(id = "lnr_ans_d8d0eb1", 
         option = "dataset&\\`column\\`", value = "dataset&\\`column\\`", 
         label = structure("dataset&amp;`column`", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_eaab6e7", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_9204f47", 
         option = "column$dataset", value = "column$dataset", 
         label = structure("column$dataset", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_7d67ee2", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_6b22e24", 
         option = "dataset%\\`column\\`", value = "dataset%\\`column\\`", 
         label = structure("dataset%`column`", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_ff7fd30", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_a08895", 
         option = "dataset$\\`column\\`", value = "dataset$\\`column\\`", 
         label = structure("dataset$`column`", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1339,7 +1339,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "second-quiz-4-answer", question = "second-quiz-4"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1398777110.34864, options = list()), class = c("learnr_radio", 
+    seed = 1574339287.26689, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
  
@@ -1591,10 +1591,10 @@ learnr:::store_exercise_cache(structure(list(label = "lm-plot", global_setup = s
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "hypothesis-quiz-1", 
     question = structure("Spiele mit hoeherem Complexity Score haben eine niedrigere Anzahl von Owned Users.", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_68ccd7b", 
+    "character")), answers = list(structure(list(id = "lnr_ans_eed26d3", 
         option = "Wahr", value = "Wahr", label = structure("Wahr", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_1e6296f", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_ab0fd6", 
         option = "Falsch", value = "Falsch", label = structure("Falsch", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
     "tutorial_quiz_answer"))), button_labels = list(submit = structure("<span data-i18n=\"button.questionsubmit\">Submit Answer<\u002fspan>", html = TRUE, class = c("html", 
@@ -1605,7 +1605,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "hypothesis-quiz-1-answer", question = "hypothesis-quiz-1"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1515152110.79445, options = list()), class = c("learnr_radio", 
+    seed = 1623030304.74422, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
 
@@ -1613,10 +1613,10 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "hypothesis-quiz-2", 
     question = structure("Spiele mit hoeherem Complexity Score haben hoehere Play Time.", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_3846206", 
+    "character")), answers = list(structure(list(id = "lnr_ans_3501eb8", 
         option = "Wahr", value = "Wahr", label = structure("Wahr", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_a8c77d4", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_73bea82", 
         option = "Falsch", value = "Falsch", label = structure("Falsch", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
     "tutorial_quiz_answer"))), button_labels = list(submit = structure("<span data-i18n=\"button.questionsubmit\">Submit Answer<\u002fspan>", html = TRUE, class = c("html", 
@@ -1627,7 +1627,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "hypothesis-quiz-2-answer", question = "hypothesis-quiz-2"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 750405261.150565, options = list()), class = c("learnr_radio", 
+    seed = 1015741688.02701, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
  
@@ -1673,20 +1673,20 @@ learnr:::store_exercise_cache(structure(list(label = "plotExercise", global_setu
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "quiz-ggplot-1", 
     question = structure("Was ist der Median im Diagramm?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_878aef5", 
+    "character")), answers = list(structure(list(id = "lnr_ans_497f51f", 
         option = "ein vertikaler Strich", value = "ein vertikaler Strich", 
         label = structure("ein vertikaler Strich", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_772611e", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_98e7fbb", 
         option = "die Höhe der Box", value = "die Höhe der Box", 
         label = structure("die Höhe der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_4d30e87", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_aadc", 
         option = "ein horizontaler Strich in der Mitter der Box", 
         value = "ein horizontaler Strich in der Mitter der Box", 
         label = structure("ein horizontaler Strich in der Mitter der Box", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_158e05b", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_725f5a2", 
         option = "das untere Ende der Box", value = "das untere Ende der Box", 
         label = structure("das untere Ende der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1698,7 +1698,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "quiz-ggplot-1-answer", question = "quiz-ggplot-1"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1818856474.65303, options = list()), class = c("learnr_radio", 
+    seed = 1311234301.88941, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
 
@@ -1706,19 +1706,19 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_checkbox", label = "quiz-ggplot-2", 
     question = structure("Was sind die Quartile im Diagramm?(Es sind mehrere Antworten möglich)", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_279be13", 
+    "character")), answers = list(structure(list(id = "lnr_ans_4a17a61", 
         option = "das obere Ende der Box", value = "das obere Ende der Box", 
         label = structure("das obere Ende der Box", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_887870f", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_39b36a", 
         option = "Punkte oberhalb der Box", value = "Punkte oberhalb der Box", 
         label = structure("Punkte oberhalb der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_3022269", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_c42dac1", 
         option = "ein Drittel des vertikalen Strichs", value = "ein Drittel des vertikalen Strichs", 
         label = structure("ein Drittel des vertikalen Strichs", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_874cf80", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_3d4487d", 
         option = "das untere Ende der Box", value = "das untere Ende der Box", 
         label = structure("das untere Ende der Box", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1730,26 +1730,26 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_checkbox", lab
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "quiz-ggplot-2-answer", question = "quiz-ggplot-2"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1157877186.46082, options = list()), class = c("learnr_checkbox", 
+    seed = 563455104.737621, options = list()), class = c("learnr_checkbox", 
 "tutorial_question")), session = session)
 </script>
  
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "quiz-ggplot-3", 
     question = structure("Was sind die Maximalwerte im Diagramm?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_c3d68ea", 
+    "character")), answers = list(structure(list(id = "lnr_ans_895cecb", 
         option = "Punkte oberhalb der Box", value = "Punkte oberhalb der Box", 
         label = structure("Punkte oberhalb der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_34a52bd", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_659b21c", 
         option = "die Spitzen des vertikalen Strichs", value = "die Spitzen des vertikalen Strichs", 
         label = structure("die Spitzen des vertikalen Strichs", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_81dc897", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_9dc790e", 
         option = "die x-Achse und die y-Achse", value = "die x-Achse und die y-Achse", 
         label = structure("die x-Achse und die y-Achse", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_fe3a57f", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_96f30b", 
         option = "die Flaeche der Box", value = "die Flaeche der Box", 
         label = structure("die Flaeche der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1761,7 +1761,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "quiz-ggplot-3-answer", question = "quiz-ggplot-3"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 763240019.144589, options = list()), class = c("learnr_radio", 
+    seed = 163174556.924016, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>
 
@@ -1769,15 +1769,15 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
 <script type="application/shiny-prerendered" data-context="server">
 learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label = "quiz-ggplot-4", 
     question = structure("An was erkennt man im Diagramm die Ausreißer?", html = TRUE, class = c("html", 
-    "character")), answers = list(structure(list(id = "lnr_ans_ad6f2aa", 
+    "character")), answers = list(structure(list(id = "lnr_ans_1e82ddc", 
         option = "es sind Punkte außerhalb der Box", value = "es sind Punkte außerhalb der Box", 
         label = structure("es sind Punkte außerhalb der Box", html = TRUE, class = c("html", 
         "character")), correct = TRUE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_f0a0c56", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_c952e80", 
         option = "an der Größe der Box", value = "an der Größe der Box", 
         label = structure("an der Größe der Box", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
-    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_b4b7bc9", 
+    "tutorial_quiz_answer")), structure(list(id = "lnr_ans_9e9226b", 
         option = "durch schlechtes Verhalten", value = "durch schlechtes Verhalten", 
         label = structure("durch schlechtes Verhalten", html = TRUE, class = c("html", 
         "character")), correct = FALSE, message = NULL, type = "literal"), class = c("tutorial_question_answer", 
@@ -1789,7 +1789,7 @@ learnr:::question_prerendered_chunk(structure(list(type = "learnr_radio", label
     "character")), message = NULL, post_message = NULL), ids = list(
         answer = "quiz-ggplot-4-answer", question = "quiz-ggplot-4"), 
     loading = NULL, random_answer_order = FALSE, allow_retry = FALSE, 
-    seed = 1148582026.96515, options = list()), class = c("learnr_radio", 
+    seed = 1639250954.73666, options = list()), class = c("learnr_radio", 
 "tutorial_question")), session = session)
 </script>