MontySim — A Monty Hall problem simulator

Description

The Monty Hall problem:

Suppose you're on a game show, and you're given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what's behind the doors opens another door, say No. 3, which has a goat. He then says to you, "Do you want to pick door No. 2?" Is it to your advantage to switch your choice?

This simulator runs a specified amount of automatic trials of the problem for a specified amount of doors.

Installation

$ npm i montysim -g

Usage

$ montysim <doors> <trials>

@param {number} doors — the number of doors to test.

@param {number} trials — the number of trials to run.

Output

When $ monty 3 100 is run, the following example result is returned:

{
  numDoors: 3,
  numTrials: 100,
  expectedWinRate: '66.67%',
  actualWinRate: '66%',
  percentError: '1%',
  timeTaken: '0.03126s'
}