exercise level 3 completed

solution/day-01/level3.js

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+
+//Q1
+const ages = [19, 22, 19, 24, 20, 25, 26, 24, 25, 24] ;
+const sorted = ages.sort(( a,b)=> a-b);
+let maxAge = sorted[sorted.length-1];
+let minAge = sorted[0];
+
+// Median age 
+
+const mid = Math.floor(ages.length/2);
+
+    if(mid%2===0){
+      const  median = (ages[mid-1]+ages[mid])/2;
+      return median;
+    }
+    else{
+       const medianNun = arr[mid];
+       return medianNun;
+    }
+
+// average age
+let  sum = 0;
+
+for(let i=0;i<ages.length;i++){
+    sum+=ages[i];
+}
+const average = sum/(ages.length);
+
+
+//Q1.1
+countries.slice(0,10);
+
+//Q2
+const middleEl = Math.floor(countries.length/2)-1;
+const medianEl = (countries[middleEl-1]+countries[middleEl])/2;
+
+countries.splice(middleEl,2);
+
+
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+