diff --git a/1-Introduction/01-defining-data-science/README.md b/1-Introduction/01-defining-data-science/README.md
index 2795302a..552fae8f 100644
--- a/1-Introduction/01-defining-data-science/README.md
+++ b/1-Introduction/01-defining-data-science/README.md
@@ -3,7 +3,7 @@
 [![Defining Data Science Video](images/video-def-ds.png)](https://youtu.be/pqqsm5reGvs)
 ## Pre-Lecture Quiz
 
-[Pre-lecture quiz]()
+[Pre-lecture quiz](https://red-water-0103e7a0f.azurestaticapps.net/quiz/0)
 
 ## What is Data?
 
@@ -145,7 +145,7 @@ In this challenge, we will try to find concepts relevant to the field of Data Sc
 ![Word Cloud for Data Science](images/ds_wordcloud.png)
 ## Post-Lecture Quiz
 
-[Post-lecture quiz]()
+[Post-lecture quiz](https://red-water-0103e7a0f.azurestaticapps.net/quiz/1)
 
 ## Assignments
 
diff --git a/1-Introduction/04-stats-and-probability/README.md b/1-Introduction/04-stats-and-probability/README.md
index b4db6786..23e7cc54 100644
--- a/1-Introduction/04-stats-and-probability/README.md
+++ b/1-Introduction/04-stats-and-probability/README.md
@@ -5,7 +5,7 @@ Statistics and Probability Theory are two highly related areas of Mathematics th
 [![Intro Video](images/video-prob-and-stats.png)](https://youtu.be/Z5Zy85g4Yjw)
 ## Pre-Lecture Quiz
 
-[Pre-lecture quiz]()
+[Pre-lecture quiz](https://red-water-0103e7a0f.azurestaticapps.net/quiz/6)
 
 ## Probability and Random Variables
 
@@ -237,7 +237,7 @@ While this is definitely not exhaustive list of topics that exist within probabi
 
 ## Post-Lecture Quiz
 
-[Post-lecture quiz]()
+[Post-lecture quiz](https://red-water-0103e7a0f.azurestaticapps.net/quiz/7)
 
 ## Review & Self Study
 
diff --git a/quiz-app/src/assets/translations/en/group-1.json b/quiz-app/src/assets/translations/en/group-1.json
index 73a06070..4a1b98ef 100644
--- a/quiz-app/src/assets/translations/en/group-1.json
+++ b/quiz-app/src/assets/translations/en/group-1.json
@@ -336,49 +336,49 @@
         "title": "Statistics and Probability - Pre-Quiz",
         "quiz": [
           {
-            "questionText": "quiz 1 question 1",
+            "questionText": "Why statistics and probability are important for data science?",
             "answerOptions": [
               {
-                "answerText": "True",
+                "answerText": "Because you cannot operate on data without knowing math",
+                "isCorrect": "false"
+              },
+              {
+                "answerText": "Because data science is a science and has strong formal foundation",
                 "isCorrect": "true"
               },
               {
-                "answerText": "False",
+                "answerText": "Because we want to keep uneducated people from doing data science",
                 "isCorrect": "false"
               }
             ]
           },
           {
-            "questionText": "q2",
+            "questionText": "Can you get heads 10 times in a row when throwing a coin?",
             "answerOptions": [
               {
-                "answerText": "classical ML was invented first",
-                "isCorrect": "false"
-              },
-              {
-                "answerText": "the use of neural networks",
+                "answerText": "yes",
                 "isCorrect": "true"
               },
               {
-                "answerText": "deep learning is used in robots",
+                "answerText": "no",
                 "isCorrect": "false"
               }
             ]
           },
           {
-            "questionText": "q3",
+            "questionText": "When you throw a dice, what is the probability of getting an even number?",
             "answerOptions": [
               {
-                "answerText": "to automate the solving of multi-dimensional problems",
-                "isCorrect": "false"
+                "answerText": "1/2",
+                "isCorrect": "true"
               },
               {
-                "answerText": "to customize a shopping experience based on the type of customer",
+                "answerText": "1/3",
                 "isCorrect": "false"
               },
               {
-                "answerText": "both of the above",
-                "isCorrect": "true"
+                "answerText": "impossible to tell",
+                "isCorrect": "false"
               }
             ]
           }
@@ -389,49 +389,53 @@
         "title": "Statistics and Probability - Post-Quiz",
         "quiz": [
           {
-            "questionText": "quiz 1 question 1",
+            "questionText": "We want to prove that basketball players are taller than average people. We have collected heights of 20 people from both groups. What do we need to do?",
             "answerOptions": [
               {
-                "answerText": "True",
-                "isCorrect": "true"
+                "answerText": "compare means",
+                "isCorrect": "false"
               },
               {
-                "answerText": "False",
+                "answerText": "collect more data, 20 is not enough!",
                 "isCorrect": "false"
+              },
+              {
+                "answerText": "use t-test",
+                "isCorrect": "true"
               }
             ]
           },
           {
-            "questionText": "q2",
+            "questionText": "How can we demonstrate that income of a person is dependent on the level of education?",
             "answerOptions": [
               {
-                "answerText": "classical ML was invented first",
-                "isCorrect": "false"
+                "answerText": "compute correlation coefficient",
+                "isCorrect": "true"
               },
               {
-                "answerText": "the use of neural networks",
-                "isCorrect": "true"
+                "answerText": "divide into educated and non-educated cohorts and compute means",
+                "isCorrect": "false"
               },
               {
-                "answerText": "deep learning is used in robots",
+                "answerText": "use t-test",
                 "isCorrect": "false"
               }
             ]
           },
           {
-            "questionText": "q3",
+            "questionText": "We throw the dice 100 times and compute the average value. What would be the distribution of the result?",
             "answerOptions": [
               {
-                "answerText": "to automate the solving of multi-dimensional problems",
+                "answerText": "uniform",
                 "isCorrect": "false"
               },
               {
-                "answerText": "to customize a shopping experience based on the type of customer",
-                "isCorrect": "false"
+                "answerText": "normal",
+                "isCorrect": "true"
               },
               {
-                "answerText": "both of the above",
-                "isCorrect": "true"
+                "answerText": "none of the above",
+                "isCorrect": "false"
               }
             ]
           }