Update q4.sh

q4/q4.sh

@@ -12,8 +12,8 @@ do
     count=$((count+1))
     done
 done <q4_in.txt
-avg=`expr $sum / $count`
-echo $avg
+
+echo "scale=3;$sum / $count"|bc
 
 arr2=($(echo ${array[*]}| tr " " "\n" | sort -n))
 
@@ -23,9 +23,7 @@ then
     a=${arr2[$i]}
     b=${arr2[$(($i-1))]}
     x=`expr $a + $b`
-    med=`expr $x / 2`
+    echo "scale=3; $x / 2"|bc
 else
-    med=${arr2[$i]}
+    echo ${arr2[$i]}
 fi
-
-echo $med
\ No newline at end of file