Fix typo in statistics.markdown home-assistant#29698

source/_integrations/statistics.markdown

@@ -158,6 +158,6 @@ unique_id:
 
 ### An important note on `max_age` and `sampling_size`
 
-If both `max_age` and `sampling_size` are given, the considered samples are those within the `max_age` time window but limited to the number of `sample_size` newest samples.  Specify a wide-enough `sampling_size` if using an extended `max_age` (e.g., when looking for `max_age` 1 hour, a sensor that produces one measurement per minute should have at least a `sampling_size` of 60 to use all samples within the `max_age` timeframe.)
+If both `max_age` and `sampling_size` are given, the considered samples are those within the `max_age` time window but limited to the number of `sampling_size` newest samples.  Specify a wide-enough `sampling_size` if using an extended `max_age` (e.g., when looking for `max_age` 1 hour, a sensor that produces one measurement per minute should have at least a `sampling_size` of 60 to use all samples within the `max_age` timeframe.)
 
-If only `sample_size` is given there is no time limit. If only `max_age` is given the considered number of samples is unlimited.
+If only `sampling_size` is given there is no time limit. If only `max_age` is given the considered number of samples is unlimited.