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MollyAnn

Profile picture of MollyAnn

@mollyann

active 8 years, 10 months ago
I am new here, just trying to make friends. View
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  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    Running the simulation with 3 doors gives ~33% chance of winning, switiching doors gives a ~77% chance of winning.

  • Profile picture of AngelBabe

    AngelBabe replied to the topic thought for the day in the forum Chat forum three boards 8 years, 7 months ago

    why still

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    This is why you shouldn’t rely on memory, and analyse things properly every time. :wacko:

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    I made a slight mistake in the progam, where if you initially select the car, it can give you the same door you selected as the option to swap to. I haved fixed it here :

    public class MontyHall
    {
    public static float calculateProbability(int doors, boolean swap)
    {
    Random rand = new Random();
    int repeats = 1000;

    int wins = 0;
    for(int i = 0; i <=…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    I made a slight mistake in the progam, which shouldn’t effect the probabilities much, but I haved fixed it here :

    public class MontyHall
    {
    public static float calculateProbability(int doors, boolean swap)
    {
    Random rand = new Random();
    int repeats = 1000;

    int wins = 0;
    for(int i = 0; i <= repeats; i++) {
    // Place the car behind a random…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    I made a slight mistake in the progam, which shouldn’t effect the probabilities much, but I haved fixed it here :

    public class MontyHall
    {
    public static float calculateProbability(int doors, boolean swap)
    {
    Random rand = new Random();
    int repeats = 1000;

    int wins = 0;
    for(int i = 0; i <= repeats; i++) {
    // Place the car behind a random…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    Turns out I recalled the solution inncorectly. I wrote a simulation to test the problem, swapping doors idoes mprove your chances of winnining.

    Copy the following text into https://www.compilejava.net/ to run the program in your browser

    import java.util.Random;

    public class MontyHall
    {
    public static float calculateProbability(int doors, boolean…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    Turns out I was wrong, I wrote a simulation and it does improve your probablity of winning.

    Copy the following text into https://www.compilejava.net/ to run the program in your browser

    import java.util.Random;

    public class MontyHall
    {
    public static float calculateProbability(int doors, boolean swap)
    {
    Random rand = new Random();
    int repeats =…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    Switching doors doesn’t statistically improve your chances of winning the car, the Monty Hall problem is a good example of how raw probabilities can be misleading.

    The easiest way to demonstrate this would be to write two computer programs that randomly select doors. The first program always switches doors, the other will always keep it’s door.…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    Switching doors doesn’t statistically improve your chances of winning the car, the Monty Hall problem is a good example of how raw probabilities can be misleading.

     

    The easiest way to demonstrate this would be to write two computer programs that randomly select doors. The first program always switches doors, the other will always keep it’s…[Read more]

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    I’m not sure how much I agree with this. From my experience most people who go to university are of average or below average intelligence. And if they already had knowledge then there is no purpose in them attending a university course.

    There are still people who believe that today.

  • Profile picture of draculina

    draculina replied to the topic Basic IQ / Maths question in the forum Chat forum three boards 8 years, 7 months ago

    B-)

  • Profile picture of AngelBabe

    AngelBabe replied to the topic Music Thread in the forum Chat forum three boards 8 years, 7 months ago

    https://www.youtube.com/watch?v=mp89bQnYxko
  • Profile picture of AngelBabe

    AngelBabe replied to the topic thought for the day in the forum Chat forum three boards 8 years, 7 months ago

    Why?????? just why????

  • Profile picture of AngelBabe

    AngelBabe replied to the topic Word of the day? in the forum Chat forum three boards 8 years, 7 months ago

    Trolls

  • Profile picture

    Indecisive posted an update 8 years, 7 months ago

    Just back for inbox messages. Will reply

  • Profile picture of draculina

    draculina replied to the topic How High is a mountain? in the forum Chat forum three boards 8 years, 7 months ago

    Just buildings

  • Profile picture of draculina

    draculina replied to the topic How High is a mountain? in the forum Chat forum three boards 8 years, 7 months ago

    I’m okay

  • Profile picture of draculina

    draculina replied to the topic How High is a mountain? in the forum Chat forum three boards 8 years, 7 months ago

    Elevation is a social construct, don’t be geophobic.

  • Profile picture of AngelBabe

    AngelBabe‘s profile was updated 8 years, 7 months ago

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