diff --git a/s4_operating_system/Unit 2/03.CPU_Scheduling.md b/s4_operating_system/Unit 2/03.CPU_Scheduling.md
index b0048acd..826d5d0c 100644
--- a/s4_operating_system/Unit 2/03.CPU_Scheduling.md	
+++ b/s4_operating_system/Unit 2/03.CPU_Scheduling.md	
@@ -229,7 +229,7 @@ To compare scheduling algorithms, we use these metrics:
 | P1 | 0 | 5 | 12 | 12 | 7 | 0 |
 | P2 | 1 | 4 | 11 | 10 | 6 | 1 |
 | P3 | 2 | 2 | 6 | 4 | 2 | 2 |
-| P4 | 4 | 1 | 9 | 5 | 4 | 5 |
+| P4 | 4 | 1 | 9 | 5 | 4 | 4 |
 
 **Ready Queue Progression**:
 `P1 -> P2 -> P3 -> P1 -> P4 -> P2 -> P1`