diff --git a/module2/exo2/exercice_en.Rmd b/module2/exo2/exercice_en.Rmd
index c571e98ecb1209a664fabf61cd1f76f6d0733c46..60fee8cafbaf988c23c76549af17e16455f70f15 100644
--- a/module2/exo2/exercice_en.Rmd
+++ b/module2/exo2/exercice_en.Rmd
@@ -1,14 +1,14 @@
 ---
 title: "Doing a simple calculation on your own"
-author: Meiling WU
-date: 30.05.2022
+author: Nicholas
+date: 21.10.2022
 ---
 
 # Object
 
 x<- c(14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2, 14.9, 18.1, 7.3, 9.8, 10.9,12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7, 13.1, 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9, 11.9, 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7, 14.0, 13.6, 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2, 16.1, 13.5, 6.3, 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6, 19.1, 14.4, 21.4, 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0, 6.8, 8.2, 19.9, 20.4, 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8, 22.4, 16.2, 20.3, 23.4, 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9, 21.0)
 
-# min;max;mean;median
+# min=2.8 ;max= 23.4;mean=14.11;median=14.5
 
 ```{r}
 summary(x)
@@ -17,5 +17,5 @@ summary(x)
 ```{r}
 round(sd(x), digits=2)
 ```
-
+#standard deviation =4.33