Fix some minor errors in the docs (GH-24834)

diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst
index 6b6d315..695fb49 100644
--- a/Doc/library/statistics.rst
+++ b/Doc/library/statistics.rst
@@ -51,7 +51,7 @@
 :func:`median_high`      High median of data.
 :func:`median_grouped`   Median, or 50th percentile, of grouped data.
 :func:`mode`             Single mode (most common value) of discrete or nominal data.
-:func:`multimode`        List of modes (most common values) of discrete or nomimal data.
+:func:`multimode`        List of modes (most common values) of discrete or nominal data.
 :func:`quantiles`        Divide data into intervals with equal probability.
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