proof reading working with data in R

Author: liamjberrisford

individual_modules/working_with_data_in_R/questions/summary_combining_datasets.json

@@ -26,7 +26,7 @@
         ]
     },
     {
-        "question": "In a left join, what happens to the rows in the elft dataframe that do not have matching values in the right dataframe?",
+        "question": "In a left join, what happens to the rows in the left dataframe that do not have matching values in the right dataframe?",
         "type": "many_choice",
         "answers": [
             {
@@ -35,7 +35,7 @@
                 "feedback": "Incorrect"
             },
             {
-                "answer": "They are retained with `NA` values fo the column from the right dataframe",
+                "answer": "They are retained with `NA` values for the column from the right dataframe",
                 "correct": true,
                 "feedback": "Correct"
             },
@@ -56,7 +56,7 @@
         "type": "many_choice",
         "answers": [
             {
-                "answer": "They results in faster joins",
+                "answer": "They result in faster joins",
                 "correct": false,
                 "feedback": "Incorrect"
             },