Hi, I've got a question but before I can get going I need to tabulate the probabilities and am coming unstuck early on...
Finding 4 coins in his pocket, Al proposes a game of chance. He will toss all 4 coins; let X denote the number of heads obtained. Penny will then toss all the coins which came up tails when Al tossed them. Let Y denote the number of heads Penny obtains.
What formula would I use to find the joint probability? Is it conditional as Y is dependant on X?
Maybe someone could help with this ( for example X = 4 Tails and Y= 4 Tails or some other so I can get the idea...)
Your help is appreciated