diff --git a/education/statistics/random-variable.md b/education/statistics/random-variable.md
index bd8f33b..ac3527d 100644
--- a/education/statistics/random-variable.md
+++ b/education/statistics/random-variable.md
@@ -2,7 +2,7 @@
 title: 隨機變數 (Random Variable)
 description: 
 published: true
-date: 2025-12-28T19:20:15.044Z
+date: 2025-12-28T19:20:34.516Z
 tags: 
 editor: markdown
 dateCreated: 2025-12-28T16:41:51.938Z
@@ -17,7 +17,7 @@ A set of probability value **p~i~** assigned to each of the values taken by the
 **0 ≤ p~i~ ≤ 1 and ∑ p~i~ = 1**
 
 Probability  
- $$\\leq$$
+$\leq$
 
 Expectation