diff --git a/module2/exo3/exercice module 2 b/module2/exo3/exercice module 2
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+#DAte: 27/11/2023
+#chargement des librairy R
+library(prettyR)
+library(ggplot2)
+#creation de la database
+A<-c(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)
+
+#calcule des moyenne, ecartype,mediane, minimum et maximum
+mean(A) #moyenne
+min(A) #minmum
+max(A) #maximum
+median(A) #mediane
+sd(A) #ecartype
+
+#representation graphique
+plot(A, type="l", col="blue")
+hist(A, col="blue")
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