Question

You have three $1 bills, four $5 bills, and two $10 bills in your pocket. You select a bill at random. Without replacing a bill, you choose a second bill at random. Find p($5 then $10)

Answer 1

pi times both number to get the answer.

Answer 2

P($10 and $1) = P($10)*P($1 | $10)
= (2/9)(3/8) = 1/12These are dependent events because you do not replace the $10
after selecting it.