Fixed mistake in prob notes

1 files changed, 1 insertions, 1 deletions

diff --git a/sem6/prob/m4/notes.tex b/sem6/prob/m4/notes.tex
index 227d8bc..330f12a 100644
--- a/sem6/prob/m4/notes.tex
+++ b/sem6/prob/m4/notes.tex
@@ -109,7 +109,7 @@ Then $X$ is the number of chosen blue marbles.
 
 \begin{definition}
     If $X \sim Hypergeometric(b,r,k)$ its PMF is: \[
-        P_X(k) = \left\{
+        P_X(x) = \left\{
             \begin{array}{ll}
                 \frac{\binom{b}{x} \binom{r}{k-x}}{\binom{b+r}{k}} & \mathrm{for} \: x \in R_X \\
                 0 & \mathrm{otherwise}