Update pages/5. Distributions.py

pages/5. Distributions.py

@@ -12,4 +12,5 @@ multi = """:green[Example:]Number of cars passing a red light
 st.markdown(multi)
 
 st.subheader(":red[Probability mass function (PMF):]")
-st.write("A probability mass function (pmf) is a function over the sample space of a discrete random variable X which gives the probability that X is equal to a certain value. f(x)=P[X=x].")
+st.write("A probability mass function (pmf) is a function over the sample space of a discrete random variable X which gives the probability that X is equal to a certain value.")
+st.latex("f(x)=P[X=x]")