Question

write the programe in Python

A and B have a coin which they suspect is unfair, because they tossed it 100 times and got 65 heads. They want to decide who goes first in a game and they have no other coin to toss, so they have to use this coin. Describe a method to use this coin to make a fair decision. (There are at least three methods)

Answer 1

#probability of head=.65
#probability of tail=1-.65=.35
#probability of getting a head after a tail=.35*.65=.2275
#probability of getting a tail after a head=.65*.35=.2275

#thus if we toss the coin 2 times and make a decision based on who gets a TH or HT, the result would be fair
#method which returns the  after a fair toss

import random
def WhoGoesFirst():
    '''if the out come is TH, A goes first ,if it is HT, B does. Any other outcome and we repeat the toss'''
    while True:
        toss1=random.randint(0,100)
        toss2=random.randint(0,100)
        if toss1>65 and toss2<=65:
            return 'A'
        elif toss1<=65 and toss2>65:
            return 'B'