Suppose you wanted to test your ESP using an ordinary deck of 52 cards, which has 26 black and 26 red cards. You have a friend shuffle the deck and draw cards at random, replacing the card and reshuffling after each guess. You attempt to guess the color of each card.
What is the probability that you guess the color correctly by chance?
1/2
To determine the probability of guessing the color correctly by chance, we need to consider the ratio of the number of favorable outcomes (correct guesses) to the total number of possible outcomes.
In this scenario, you have a 50% chance of guessing the color correctly, as there are only two possible outcomes: black or red. Additionally, you have no prior knowledge or information to aid your guessing, so each guess is independent and random.
Therefore, the probability of guessing the color correctly by chance is 1/2 or 0.5 (50%).