diff --git a/statistics/lecture/statistics.tex b/statistics/lecture/statistics.tex
index d48b0d0..fd66e5f 100644
--- a/statistics/lecture/statistics.tex
+++ b/statistics/lecture/statistics.tex
@@ -243,7 +243,7 @@ getting a measurement between $x_0$ and $x_0+\Delta x$ scales down to
 zero with $\Delta x$:
 \[ P(x_0<x<x_0+\Delta x) \approx p(x_0) \cdot \Delta x \; . \] 
 In here the quantity $p(x_00)$ is a so called \enterm{probability
-  density} that is larger than zero and that described the
+  density} that is larger than zero and that describes the
 distribution of the data values. The probability density is not a
 unitless probability with values between 0 and 1, but a number that
 takes on any positive real number and has as a unit the inverse of the