diff --git a/Exo 1/Exo1.sce b/Exo 1/Exo1.sce
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index e69de29..0000000
diff --git a/Exo 1/Question1.sce b/Exo 1/Question1.sce
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+data = csvRead("data/data.csv");
+// surface terrestre mondiale
+surface = sum(data(:, 2)* 1000);
+// nombre d'habitants mondial
+population = sum(data(:, 3)* 1000000);
+// densité moyenne d'habitants au km2
+densite = population / surface;
diff --git a/Exo 1/Question2.sce b/Exo 1/Question2.sce
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+++ b/Exo 1/Question2.sce	
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+data = csvRead("data/data.csv");
+//Afrique
+surfaceAfrique = sum(data(1:57, 2)* 1000);
+populationAfrique = sum(data(1:57, 3)* 1000000);
+densiteAfrique = populationAfrique / surfaceAfrique;
+
+//Amérique du nord
+surfaceAmeriqueNord = sum(data(58:86, 2)* 1000);
+populationAmeriqueNord = sum(data(58:86, 3)* 1000000);
+densiteAmeriqueNord = populationAmeriqueNord / surfaceAmeriqueNord;
+
+//Amérique du sud
+surfaceAmeriqueSud = sum(data(87:99, 2)* 1000);
+populationAmeriqueSud = sum(data(87:99, 3)* 1000000);
+densiteAmeriqueSud = populationAmeriqueSud / surfaceAmeriqueSud;
+
+//Asie
+surfaceAsie = sum(data(100:150, 2)* 1000);
+populationAsie = sum(data(100:150, 3)* 1000000);
+densiteAsie = populationAsie / surfaceAsie;
+
+//Europe
+surfaceEurope = sum(data(151:193, 2)* 1000);
+populationEurope = sum(data(151:193, 3)* 1000000);
+densiteEurope = populationEurope / surfaceEurope;
+
+//Océanie
+surfaceOceanie = sum(data(194:207, 2)* 1000);
+populationOceanie = sum(data(194:207, 3)* 1000000);
+densiteOceanie = populationOceanie / surfaceOceanie;
diff --git a/Exo 1/Question3.sce b/Exo 1/Question3.sce
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+bar([1, 2, 3, 4, 5, 6], [densiteAfrique, densiteAmeriqueNord, densiteAmeriqueSud, densiteAsie, densiteEurope, densiteOceanie]);
diff --git a/Exo 1/Question4.sce b/Exo 1/Question4.sce
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+++ b/Exo 1/Question4.sce	
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+//Surface
+pie([surfaceAfrique, surfaceAmeriqueNord, surfaceAmeriqueSud, surfaceAsie, surfaceEurope, surfaceOceanie]);
+legend(["Afrique", "Amérique du nord", "Amérique du sud", "Asie", "Europe", "Océanie"]);
+
+//Population
+pie([populationAfrique, populationAmeriqueNord, populationAmeriqueSud, populationAsie, populationEurope, populationOceanie]);
+legend(["Afrique", "Amérique du nord", "Amérique du sud", "Asie", "Europe", "Océanie"]);