diff --git a/module2/exo3/exercice_python_fr.org b/module2/exo3/exercice_python_fr.org
index c7157ba42216cf2e1d291112bb351ce48811115c..17fb2c8c6ab9ebc88fa66c792e99221ac9b57d57 100644
--- a/module2/exo3/exercice_python_fr.org
+++ b/module2/exo3/exercice_python_fr.org
@@ -91,3 +91,45 @@ faisant ~<p~, ~<P~ ou ~<PP~ suivi de ~Tab~).
 
 Maintenant, à vous de jouer! Vous pouvez effacer toutes ces
 informations et les remplacer par votre document computationnel.
+* Exo 3 
+  #+begin_src python :results output file :session python :exports both
+  import matplotlib.pyplot as plt
+
+  import numpy as np 
+  data = np.array([ 14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2, 14.9, 18.1, 7.3, 9.8, 10.9,12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7, 13.1, 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9, 11.9, 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7, 14.0, 13.6, 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2, 16.1, 13.5, 6.3, 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6, 19.1, 14.4, 21.4, 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0, 6.8, 8.2, 19.9, 20.4, 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8, 22.4, 16.2, 20.3, 23.4, 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9, 21.0 ]) 
+  indx = np.arange(100); 
+
+  plt.figure(figsize=(10,5))
+  plt.plot(indx,data)
+  plt.tight_layout()
+  plt.grid(True)
+  
+  plt.savefig("graph1.png")
+  print("graph1.png")
+#+end_src
+
+#+RESULTS:
+[[file:graph1.png]]
+  File "<stdin>", line 1, in <module>
+  File "/tmp/babel-9WZjyx/python-UVznjd", line 10, in <module>
+    plt.gird(True)
+AttributeError: module 'matplotlib.pyplot' has no attribute 'gird']]
+
+  #+begin_src python :results output file :session python :exports both
+  import matplotlib.pyplot as plt
+
+  import numpy as np 
+  data = np.array([ 14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2, 14.9, 18.1, 7.3, 9.8, 10.9,12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7, 13.1, 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9, 11.9, 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7, 14.0, 13.6, 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2, 16.1, 13.5, 6.3, 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6, 19.1, 14.4, 21.4, 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0, 6.8, 8.2, 19.9, 20.4, 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8, 22.4, 16.2, 20.3, 23.4, 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9, 21.0 ]) 
+  indx = np.arange(100); 
+
+  plt.figure(figsize=(10,5))
+  plt.hist(data, bins=10)
+  plt.tight_layout()
+  plt.grid(True)
+  
+  plt.savefig("graph2.png")
+  print("graph2.png")
+#+end_src
+
+#+RESULTS:
+[[file:graph2.png]]
diff --git a/module2/exo3/graph1.png b/module2/exo3/graph1.png
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diff --git a/module2/exo3/graph2.png b/module2/exo3/graph2.png
new file mode 100644
index 0000000000000000000000000000000000000000..9fef9bd0f21a9fe71a95b6d1c4860069537f2c01
Binary files /dev/null and b/module2/exo3/graph2.png differ