diff --git a/06_StatisticalInference/01_01_Introduction/index.Rmd b/06_StatisticalInference/01_01_Introduction/index.Rmd
index 74e8b2a1e..e7bcc6401 100644
--- a/06_StatisticalInference/01_01_Introduction/index.Rmd
+++ b/06_StatisticalInference/01_01_Introduction/index.Rmd
@@ -146,7 +146,7 @@ on "finite population statistics". Used heavily in polling and
 sample surveys.
 2. Explicit use of randomization in inferences: look in references
 on "causal inference" especially in clinical trials.
-3. Bayesian probability and Bayesian statistics: look for basic itroductory books (there are many).
+3. Bayesian probability and Bayesian statistics: look for basic introductory books (there are many).
 4. Missing data: well covered in biostatistics and econometric
 references; look for references to "multiple imputation", a popular tool for
 addressing missing data.