diff --git a/assets/section_2.2_1686907456219_0.edn b/assets/section_2.2_1686907456219_0.edn
index 81af051..6711ca5 100644
--- a/assets/section_2.2_1686907456219_0.edn
+++ b/assets/section_2.2_1686907456219_0.edn
@@ -96,5 +96,34 @@
                                    :height 544.252}),
                           :page 17},
                :content {:text "A random variable is said to be of discrete type if the number of different values it can take is finite or countably infinite."},
+               :properties {:color "yellow"}}
+              {:id #uuid "648c2c54-b536-40ba-8191-ef1aeb2be0b9",
+               :page 25,
+               :position {:bounding {:x1 0,
+                                     :y1 28.671875,
+                                     :x2 669.1324462890625,
+                                     :y2 235.19529724121094,
+                                     :width 725.67,
+                                     :height 544.252},
+                          :rects ({:x1 0,
+                                   :y1 28.671875,
+                                   :x2 0,
+                                   :y2 51.171875,
+                                   :width 725.67,
+                                   :height 544.252}
+                                  {:x1 56.686195373535156,
+                                   :y1 182.6822967529297,
+                                   :x2 669.1324462890625,
+                                   :y2 206.8489532470703,
+                                   :width 725.67,
+                                   :height 544.252}
+                                  {:x1 56.686195373535156,
+                                   :y1 209.7786407470703,
+                                   :x2 619.7694091796875,
+                                   :y2 235.19529724121094,
+                                   :width 725.67,
+                                   :height 544.252}),
+                          :page 25},
+               :content {:text "We call X a continuous random variable if there is a function f defined for all x ∈ R and having the following properties:"},
                :properties {:color "yellow"}}],
- :extra {:page 25}}
+ :extra {:page 35}}
diff --git a/pages/hls__section_2.2_1686907456219_0.md b/pages/hls__section_2.2_1686907456219_0.md
index ba3871a..f9d0ce6 100644
--- a/pages/hls__section_2.2_1686907456219_0.md
+++ b/pages/hls__section_2.2_1686907456219_0.md
@@ -37,4 +37,9 @@ file-path:: ../assets/section_2.2_1686907456219_0.pdf
   hl-page:: 17
   hl-color:: yellow
   id:: 648c2be0-787e-4e1f-8d0c-b859f0d08383
-  hl-stamp:: 1686907879808
\ No newline at end of file
+  hl-stamp:: 1686907879808
+- We call X a continuous random variable if there is a function f defined for all x ∈ R and having the following properties:
+  ls-type:: annotation
+  hl-page:: 25
+  hl-color:: yellow
+  id:: 648c2c54-b536-40ba-8191-ef1aeb2be0b9
\ No newline at end of file
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 6ebedca..41c71e8 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2693,6 +2693,7 @@
 						- ((648c2860-5454-45f1-80f8-1c85bce84fd1))
 						- ((648c290a-3532-4e56-8536-258daf7b00a7))
 					- Distribution Function
+					  collapsed:: true
 						- ((648c2970-9091-4f46-8745-b0c10cdeb832))
 							- ((648c2994-36eb-44bf-8038-e49d2390a5b0))
 						- ((648c2a73-3961-4723-90e8-5f160bb18e0d)) ![section 2.2.pdf](../assets/section_2.2_1686907456219_0.pdf)
@@ -2701,7 +2702,9 @@
 							- ((648c2b26-e92d-43f7-b8e1-60b51a2b5268))
 						- Discrete type
 							- Definition:  ((648c2be0-787e-4e1f-8d0c-b859f0d08383))
-						-
+						- Continuous type
+							- ((648c2c54-b536-40ba-8191-ef1aeb2be0b9))
+					-
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01