Python program to design a coin flip function

An example of random.choice() in Python: Here, we are going to learn how to design a function that can be used as coin flip and the function will return a random value of coin flip? By Anuj Singh Last updated : January 12, 2024

Problem statement

Write a Python program to design a coin flip function.

Solution overview

Here, we are going to build a coin() function using Python. The program is so simple as an introductory program for defining a function. The function is going to use an inbuilt library naming random. This random library helps us to choose a random value of the variable within the range.

Designing a coin flip function

To design a coin flip function, use the random.choice() method and pass the list of the values for HEAD and TAIL as ['H', 'T'] as the parameter, when the function is called, it will return a random value from the given list that will be either HEAD ('H') or TAIL ('T').

Consider the below statement:

random.choice(['H','T'])

The above function will choose a random value with a probability of 0.5 each i.e. all are independent to each other which will work as dice.

Python program to design a coin flip function

import random

# function to return the random value of
# coin flip
def coin():
    return random.choice(["H", "T"])

# main code i.e. calling the function
print("COIN FLIP: ", coin())
print("COIN FLIP: ", coin())
print("COIN FLIP: ", coin())
print("COIN FLIP: ", coin())
print("COIN FLIP: ", coin())

Output

The output of the above program is:

RUN 1:
COIN FLIP:  H
COIN FLIP:  T
COIN FLIP:  T
COIN FLIP:  H
COIN FLIP:  T

RUN 2:
COIN FLIP:  H
COIN FLIP:  T
COIN FLIP:  T
COIN FLIP:  T
COIN FLIP:  T

To understand the above program, you should have the basic knowledge of the following Python topics:

Python Basic Programs »

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