Question

A coin is flipped 25 times and lands on heads 16 times. Based on the experimental probability, how many heads would you predict for 200 flips of the coin?



100

72

128

64

Answer 1

id say 128

Answer 2

First, calculate the observed probability.

16 times out of 25, the coin lands on heads. What is the ratio of these two counts? That's your observed probability. Never mind that we'd expect that the probability of getting heads of a fair coin would be 0.5 (that's classical probability).

Next, multiply your observed probability by 200 (trials / flips).

Answer 3

Thanks!