added new solution for coin_toss

topleft · topleft · commit fc8e156eca61 · 2015-12-22T16:37:49.000-07:00
diff --git a/refactor/chp08/solutions/coin_toss_functions.py b/refactor/chp08/solutions/coin_toss_functions.py
@@ -0,0 +1,20 @@
+from random import randint
+
+def single_trial():
+  toss = randint(0, 1)
+  total_flips = 1
+
+  while toss == randint(0, 1):
+    total_flips += 1
+    toss = randint(0, 1)
+
+  total_flips += 1
+  return total_flips
+
+def flip_trial_avg(num_trials):
+  total = 0
+  for trial in range(num_trials):
+    total += single_trial()
+  return total/num_trials
+  
+print("The average number of coin flips was {0}".format(flip_trial_avg(10000)))
