course 1: fix small bug in solution of exercise 2.2

Author: robinengler

course1/exercises_course1.ipynb

@@ -391,7 +391,7 @@
     "   **Hint:** the column `60+ y.o.` contains the number of 60+ years old. The column `Total` contains\n",
     "    the total number of inhabitants.\n",
     "    \n",
-    "2. Graphically represent the proportion of people more than 60 years old (`60+ y.o.`) across all cantons.\n",
+    "2. Graphically represent the proportion of people over 60 years old (`60+ y.o.`) across all cantons.\n",
     "   Choose the most appropriate kind of plot."
    ]
   },
@@ -440,7 +440,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# %load -r 12- solutions/solution_22.py"
+    "# %load -r 14- solutions/solution_22.py"
    ]
   },
   {

course1/solutions/solution_22.py

@@ -1,5 +1,6 @@
 import pandas as pd
 import seaborn as sns
+import matplotlib.pyplot as plt
 
 # Load the input data as a pandas DataFrame
 df_census = pd.read_csv("data/swiss_census_1880.csv")