#Simulate n tosses of a coin and return
#the number of heads
from random import random
def cointoss_count(n):
  count=0
  for x in range(0,n):
    if random()<0.5:
      count=count+1
#note that we could also eliminat the if statement
#and simply write count=count+(random()<0.5)
  return count


#now toss n coins and m times and count
#how many times the number of heads
#deviates by no more than p percent
#from the expected mean of n/2

def deviation(n,m,p):
  count=0
  for trial in range(0,m):
    if abs(cointoss_count(n)-n/2)<=p*n/100:
      count=count+1
  return(count)