Question 776847
1) there are four suits, so the chance of the drawn card being a heart is 1/4

2) The chance of a head on each roll is 1/2, so for both tosses to be heads it's 1/4. (Both tails, 1/4, and one head one tail, 1/2)

3) We expect about 50, although precisely 50 would be a bit less common.