Question

A coin is weighted so that the probability of getting heads is 0.70. If the coin is flipped twice, what is the probability of getting a tail followed by a head?

Answer 1

If the probability of flipping heads is 0.70, the probability of flipping tails is 0.30. 

To find probability, you multiply the probability of each factor together:

P = 0.7  * 0.3 

P = 0.21 or 21%