Initial data commit

Task/Statistics-Normal-distribution/Python/statistics-normal-distribution.py

@@ -0,0 +1,15 @@
+from __future__ import division
+import matplotlib.pyplot as plt
+import random
+
+mean, stddev, size = 50, 4, 100000
+data = [random.gauss(mean, stddev) for c in range(size)]
+
+mn = sum(data) / size
+sd = (sum(x*x for x in data) / size
+      - (sum(data) / size) ** 2) ** 0.5
+
+print("Sample mean = %g; Stddev = %g; max = %g; min = %g for %i values"
+      % (mn, sd, max(data), min(data), size))
+
+plt.hist(data,bins=50)