diff --git a/education/statistics/Measurement Error.md b/education/statistics/Measurement Error.md
index f5795fe..a6848ea 100644
--- a/education/statistics/Measurement Error.md	
+++ b/education/statistics/Measurement Error.md	
@@ -8,12 +8,16 @@ Chance errors *change from measurement to measurement but average out over time*
 
 - Chance error is how much an individual measurement varies from the exact value. It can be positive or negative.
 - The standard deviation of repeated measurements gives us the expected size of a chance error
-```
-individual measurement = exact value + chance error
-```
 
+$$ IndividualMeasurement = ExactValue + ChanceError $$
+# Outliers
+Histograms of repeated measurements tend to follow the normal curve.
+
+According to the empirical rule, 99.7% of such measurements should be within 3σ of the exact value. 
+
+$$ $
 # Terminology
 | Term | Definition |
 | -- | -- |
 | Best Guess | Average/Mean |
-| Off by how much | standard deviation |
+| Off by how much/Give or take | standard deviation |