diff --git a/001-creating-arrays.ipynb b/001-creating-arrays.ipynb
index da8e4a2..d027311 100644
--- a/001-creating-arrays.ipynb
+++ b/001-creating-arrays.ipynb
@@ -807,7 +807,7 @@
     }
    ],
    "source": [
-    "np.random.randint(0, 10, (4, 6)) # creates ints from 1 to 9; excludes 10."
+    "np.random.randint(0, 10, (4, 6)) # creates ints from 0 to 9; excludes 10."
    ]
   },
   {
@@ -847,7 +847,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.2"
+   "version": "3.6.1"
   }
  },
  "nbformat": 4,
diff --git a/004-indexing-example.ipynb b/004-indexing-example.ipynb
index d91ef5e..b601820 100644
--- a/004-indexing-example.ipynb
+++ b/004-indexing-example.ipynb
@@ -40,7 +40,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Disaplying a 2d array as an image"
+    "## Displaying a 2d array as an image"
    ]
   },
   {
@@ -422,7 +422,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.2"
+   "version": "3.6.1"
   }
  },
  "nbformat": 4,