Question

you have five 1$ bills,four 5$ bills.six 10$ bills and three 20$ in your wallet. You select a bill at random. Without replacing the bill you choose a second bill. What is p($1 then $10)?

Answer 1

help....

Answer 2

p($1 then $10) = p($1) * p($10)
p($1) is 5 out of total number of bills
p($5) is 6 out of total bills minus 1

Answer 3

ok