Respuesta :

It's 1/4. ur possible outcomes are:
H H
T T
H T
T H
there are four possible outcomes and H H is what ur looking for. so it's 1/4
vnicole9938
there are four side to 2 pennies 
both (2) coming up head out all the side (4)
there is a 2/4 chance then simplify by dividing by 2/2 and get ½
so you have ½ chance of both becoming heads

Hope this helps :D