diff --git a/.github/workflows/matrix.yml b/.github/workflows/matrix.yml
new file mode 100644
index 0000000..82d4f95
--- /dev/null
+++ b/.github/workflows/matrix.yml
@@ -0,0 +1,18 @@
+name: Matrix Strategy Workflow
+on: [push, workflow_dispatch, pull_request]
+jobs: 
+  PR-Verification:
+    strategy:
+      matrix:
+        python-version: [3.10, 3.11, 3.12]
+        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+    runs-on: $ {{ matrix.operating-system }}
+    steps:
+    - name: Get code
+      uses: actions/checkout@v4
+
+    - name: Install Poetry
+      run: |
+        curl -sSL https://install.python-poetry.org | python3 -
+        export PATH="$HOME/.local/bin:$PATH"
+
diff --git a/tests/test_fin_utils.py b/tests/test_fin_utils.py
index 15a59e1..4857d41 100644
--- a/tests/test_fin_utils.py
+++ b/tests/test_fin_utils.py
@@ -19,4 +19,4 @@ def test_calculate_parametric_var():
     calculated_var = calculate_parametric_var(value, confidence, mu, sigma)
 
     # Assert the result
-    assert calculated_var == pytest.approx(expected_varr, rel=1e-5)
+    assert calculated_var == pytest.approx(expected_var, rel=1e-5)