A garden has 8 white roses and 11 red roses. One rose is plucked from the garden and then one more rose is plucked, without replacement.
Let the event W = plucking a white rose the first time;
and event R = plucking a red rose the second time.
In two or more complete sentences, explain the meaning of probabilities P(R/W) and P(W/R). Do they have same value?