Question

1) If you flip a coin 200 times, approximately how many times will it land heads up? If you flip a coin 200 times and it lands heads up every time, what is the probability that it will land heads up on the next flip?

Answer 1

Hello there! Welcome to QuestionCove!

If you flip a coin 200 times, approximately how many times will it land heads up?

For the coin to land heads, that's a 1/2 probability. For you to get 2 heads in a row, that's a 1/(2^2) or 1/4 chance. What do you think the probability is of landing heads 200 times in a row?

If you flip a coin 200 times and it lands heads up every time, what is the probability that it will land heads up on the next flip?

If I'm understanding this question correctly, we've already flipped it 200 times and somehow beat the odds and landed on heads each time. What is the probability that you will land heads in the next try? Keep in mind that what the coin lands on in the next attempt is not tied down to what it landed on previously. That said, what is the probability of landing a heads? (Remember, there's only 2 sides to a coin.) That's your answer.