STATS PROBABILITY QUESTION SOS:
1. You draw cards with replacement from a standard deck until you have drawn 2 hearts. What is the probability that the 2nd heart is drawn on the 10th turn?

2. You draw cards with replacement from a standard deck until you have drawn 4 black cards. What is the probability that the 4th black card is drawn on the 10th turn?

3. Find a formula for the probability of the following situation. Write it out using calculator operations like !, nPr, nCr, *, /, ^, etc...

You draw cards from a standard deck until you have drawn k face cards. What is the probability that the kth face card is drawn on the xth turn?