update

clingsii · Jan 4, 2018 · 5ad944e · 5ad944e
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Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/15 Random Forests/15.2 Definition of Random Forests.md b/docs/15 Random Forests/15.2 Definition of Random Forests.md
@@ -13,7 +13,7 @@ $$
 \rho\sigma^2+\frac{1-\rho}{B}\sigma^2 \qquad (15.1)
 $$
 
-!!! note "weiya注"
+!!! note "weiya注： Ex. 15.1"
     已知$X_i,i=1,\ldots, B$独立同分布，方差均为$Var(X_i)=\sigma^2$。则
     $$
     Var(\frac 1B \sum X_i)=\frac{1}{B^2}Var(\sum X_i)