Julie has two formal events to go to -- one for her work and one for her partner's work. She has six formal dresses -- two blue
ones, one black, one red, and two white. Since the same people will not be at the two events she is okay wearing the same dress. She wants to find the probability that she wears one black and one white dress. Given the two events are independent, what is the probability?
If the dresses are chosen at random a probability tree can be constructed showing the probabilities of the various combinations that are possible. It shows the total probability of choosing a black, then white, or a white, then black dress is 1/9.
Please ensure that you've copied down this problem correctly. You speak of someone named "Yarin" but also speak of "my" and "I". Are there really two different people who "star" in this problem? Are you studying "ratios" right now?
