Fix model notation

riddler538_2020_Aug21/solution.ipynb

@@ -387,11 +387,11 @@
    "source": [
     "We get what we would expect, a distribution bounded from 0-2. If both $p$ values are low or high, then 0 or 2 are favored. Otherwise, 1 is the most common. The distribution above shows that 0 is the most common, followed by 1, then 2, so we should expect both $p$ values to be relatively low (<0.5).\n",
     "\n",
-    "Formalizing the model simple enough:\n",
+    "Formalizing the model is simple enough:\n",
     "\n",
     "\\begin{align*}\n",
-    "    y_i &= \\text{PoissonBinomial}(\\mathbf{p})\\\\\n",
-    "    p_i &= \\text{Uniform}(0,1)\\\\\n",
+    "    y_i &~ \\text{PoissonBinomial}(\\mathbf{p})\\\\\n",
+    "    p_i &~ \\text{Uniform}(0,1)\\\\\n",
     "\\end{align*}\n",
     "\n",
     "Here I've claimed flat priors on $p_1$ and $p_2$. I do have a slight bias that they both should be low (mentioned above), but perhaps one is very, very low, and one is just above 0.5 - we should account for that possibility."