FUNCTIONS 

 Functions are organized, reusable pieces of code that are either built in to a programming language or written by a programmer for a specific purpose.

float()

Converts a string or a number to floating point.

int()

Converts a string or number to an integer

max()

Returns the largest item in a sequence.

min()

Returns the smallest item in a sequence.

range()

Returns an integer. This function is commonly used in for-loops.

str()

Converts a number to a string.

Before using any of the random functions, you have to add the line from random import * to your program.