A bag contains 2 red checkers and 6 black checkers. A checker is selected, kept out of the bag, and then another checker is selected. What is P ?

Question

I need help with this and it is very hard like very very very very very very very very very very hard  

Answer 1

Obviously you want the probability of a two stage event, e.g. P(both checkers selected are red).

 

If this is in fact exactly what you want (which you did not state, explicitly), then

the value is computed as (2/8)(1/7) = 1/28.