diff --git a/practica/math/statistic/statistic_tests/pi.py b/practica/math/statistic/statistic_tests/pi.py
new file mode 100644
index 0000000..642980f
--- /dev/null
+++ b/practica/math/statistic/statistic_tests/pi.py
@@ -0,0 +1,8 @@
+import numpy as np
+import pandas as pd
+
+letter = pd.DataFrame(np.random.randint(4,5), [1,2,3,4], ['r','y','g','k','o'])
+# numbers = [1,2,3]
+# np_array= np.array (numbers)
+print (letter)
+