diff --git a/src/average_median/average_median.c b/src/average_median/average_median.c
index fcb7664..cea91e0 100644
--- a/src/average_median/average_median.c
+++ b/src/average_median/average_median.c
@@ -10,3 +10,11 @@ double average(const double *data, int n) {
     }
     return sum / n;
 }
+
+double median(double *data, int n) {
+    if (n % 2 == 0) {
+        return (data[n / 2 - 1] + data[n / 2]) / 2.0;
+    } else {
+        return data[n / 2];
+    }
+}