Question

You claim to have a magic coin that will land on heads whenever you want. Your friend dares you to prove it by tossing 4 heads in a row. Assuming the coin is fair, what is the probability that your magic will fail?
A) 50%
B) 62.5%
C) 75%
D) 93.75%

Answer 1

A. 93.75%

because every time you flip it, you lose half the chance for it to land on heads

50%-75%-93%

Answer 2

The correct answer would be 
D) 93.75%