diff --git a/src/PhpSpreadsheet/Calculation/Statistical.php b/src/PhpSpreadsheet/Calculation/Statistical.php
index 1a47a3a5..a7f7bb63 100644
--- a/src/PhpSpreadsheet/Calculation/Statistical.php
+++ b/src/PhpSpreadsheet/Calculation/Statistical.php
@@ -1155,7 +1155,7 @@ class Statistical
         // Return value
         $returnValue = 0;
 
-        if (!$arrayList) {
+        if (empty($arrayList)) {
             return $returnValue;
         }