Question

Calculate the probability of flipping a coin 20 times and getting heads 20 times. Round your answer to the nearest millionth.

Answer 1

Answer:

1/1048576.

Explanation:

What is the probability of flipping a coin 20 times and getting 20 heads?

I'm assuming that the coin is balanced and has heads on one side and tails on the other. This means that P(head) = 1/2 and P(tail) = 1/2.

 

P(flipping a coin 20 times and getting 20 heads)  

= (P(head))^20 = (1/2^)20  

= 1/1048576  

= 9.5367431640625×10^−7