fix "Hazen"

Author: phobson

docs/tutorial/closer_look_at_plot_pos.ipynb

@@ -170,8 +170,8 @@
    "source": [
     "This demostrates that the different formulations of the plotting positions vary  most at the extreme values of the dataset. \n",
     "\n",
-    "Next, let's compare the HAzen/Type 5 (α=0.5, β=0.5) formulation to Cunnane.\n",
-    "Hzewn plotting positions (shown as red triangles) represet a piece-wise linear interpolation of the emperical cumulative distribution function of the dataset.\n",
+    "Next, let's compare the Hazen/Type 5 (α=0.5, β=0.5) formulation to Cunnane.\n",
+    "Hazen plotting positions (shown as red triangles) represet a piece-wise linear interpolation of the emperical cumulative distribution function of the dataset.\n",
     "\n",
     "Given the values of α and β=0.5 vary only slightly from the Cunnane values, the plotting position predictably are similar."
    ]
@@ -283,4 +283,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}