From 2f0e3dbed2ebd9046cca25af513ce88ae5324cbf Mon Sep 17 00:00:00 2001
From: Shantanu <hauntsaninja@users.noreply.github.com>
Date: Wed, 27 May 2020 22:09:46 -0700
Subject: [PATCH] statistics: add zscore in py39 (#4130)

Co-authored-by: hauntsaninja <>
---
 stdlib/3/statistics.pyi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/stdlib/3/statistics.pyi b/stdlib/3/statistics.pyi
index 966b8f3cb..f2165f0ce 100644
--- a/stdlib/3/statistics.pyi
+++ b/stdlib/3/statistics.pyi
@@ -60,6 +60,8 @@ if sys.version_info >= (3, 8):
         def inv_cdf(self, p: float) -> float: ...
         def overlap(self, other: NormalDist) -> float: ...
         def quantiles(self, n: int = ...) -> List[float]: ...
+        if sys.version_info >= (3, 9):
+            def zscore(self, x: float) -> float: ...
         def __add__(self, x2: Union[float, NormalDist]) -> NormalDist: ...
         def __sub__(self, x2: Union[float, NormalDist]) -> NormalDist: ...
         def __mul__(self, x2: float) -> NormalDist: ...