Answer:
P(red, then orange) = 1/45
Step-by-step explanation:
There are 2 steps here:
+ We take 1 red from this bag, P( 1 red first)= 1/(1+2+4+3)= 1/10
+ Because of "not replaced", now the bag contains only: 2 blues, 4 oranges and 3 purples, and the total is 9.
We take 1 orange from 9 marbles, P(1 orange)= 2/9
we apply the rule of multiplication and we have
P(red, then orange) = 1/10 * 2/9 = 2/90= 1/45
Hope that you understand it.
