W wildyak Guest May 16, 2008 #2 the probability that heads will come up exactly twice is 1/4, not 1/2. go back to high school people!
the probability that heads will come up exactly twice is 1/4, not 1/2. go back to high school people!
R ryan l Guest May 16, 2008 #3 50 percent because 2 is half of four which means its 2 out of 4 times so the probibility is 2 or 1/2
L Leonard C Guest May 16, 2008 #4 50 - 50. The coin has two sides. Chances are 50 - 50 Flipping four times.
