Issue #27076: More doc and comment spelling fixes for 3.6, by Ville Skyttä
diff --git a/Lib/statistics.py b/Lib/statistics.py
index fc0c3d2..b081b5a 100644
--- a/Lib/statistics.py
+++ b/Lib/statistics.py
@@ -430,9 +430,9 @@
         L = float(x) - float(interval)/2
 
     # Uses bisection search to search for x in data with log(n) time complexity
-    # Find the position of leftmost occurence of x in data
+    # Find the position of leftmost occurrence of x in data
     l1 = _find_lteq(data, x)
-    # Find the position of rightmost occurence of x in data[l1...len(data)]
+    # Find the position of rightmost occurrence of x in data[l1...len(data)]
     # Assuming always l1 <= l2
     l2 = _find_rteq(data, l1, x)
     cf = l1