DOC fix typo (scikit-learn#8560)

icyblade · Sundrique · commit 006d225a1faa · 2017-06-14T11:42:51.000+08:00
diff --git a/doc/modules/outlier_detection.rst b/doc/modules/outlier_detection.rst
@@ -107,7 +107,7 @@ points, ignoring points outside the central mode.
 
 For instance, assuming that the inlier data are Gaussian distributed, it
 will estimate the inlier location and covariance in a robust way (i.e.
-whithout being influenced by outliers). The Mahalanobis distances
+without being influenced by outliers). The Mahalanobis distances
 obtained from this estimate is used to derive a measure of outlyingness.
 This strategy is illustrated below.
 
