diff --git a/samples/scatter.html b/samples/scatter.html
index afb04edc8..56c23fa72 100644
--- a/samples/scatter.html
+++ b/samples/scatter.html
@@ -16,7 +16,7 @@
     <button id="randomizeData">Randomize Data</button>
     <script>
     var randomScalingFactor = function() {
-        return Math.round(Math.random() * 100);
+        return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
     };
     var randomColor = function(opacity) {
         return 'rgba(' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 255) + ',' + (opacity || '.3') + ')';