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assets/section_2.3_1686916498071_0.edn

@@ -81,5 +81,34 @@
                           :rects (),
                           :page 29},
                :content {:text "[:span]", :image 1686919093190},
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+                          :page 30},
+               :content {:text "V ar(X) ≥ 0."},
+               :properties {:color "yellow"}}
+              {:id #uuid "648c57e8-e79a-48b6-98cf-f68dc0e5277e",
+               :page 31,
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+ :extra {:page 32}}

logseq/bak/pages/hls__section_2.3_1686916498071_0/2023-06-16T12_38_54.332Z.android.md

@@ -0,0 +1,45 @@
+file:: [section_2.3_1686916498071_0.pdf](../assets/section_2.3_1686916498071_0.pdf)
+file-path:: ../assets/section_2.3_1686916498071_0.pdf
+
+- [:span]
+  ls-type:: annotation
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pages/hls__section_2.3_1686916498071_0.md

@@ -49,4 +49,16 @@ file-path:: ../assets/section_2.3_1686916498071_0.pdf
   hl-color:: yellow
   id:: 648c57b6-225a-4926-9ce1-8d0e7aae1391
   hl-type:: area
-  hl-stamp:: 1686919093190
+  hl-stamp:: 1686919093190
+- V ar(X) ≥ 0.
+  ls-type:: annotation
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+  hl-color:: yellow
+  id:: 648c57d7-8f76-4520-8bc0-b54953bbe4cf
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+  hl-color:: yellow
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pages/总复习2023t1.md

@@ -2737,8 +2737,10 @@
 						- Variance
 							- Definition:
 								- ((648c57b6-225a-4926-9ce1-8d0e7aae1391))
-								- V ar(X) ≥ 0.
-							-
+								- Alternative calculation:
+								-
+								- ((648c57d7-8f76-4520-8bc0-b54953bbe4cf))
+								- Standard variance: ((648c57e8-e79a-48b6-98cf-f68dc0e5277e))
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01