A bag has 4 Hershey's bars, 5 Twix, 7 Reese's bars, and 9 Milky Way bars.
Caroline randomly picks a piece of Cândy from the bag, puts it back, and then pícks out another one. What is the
probability that Caroline does NOT pick a Hershey's bar and then does NOT pick a Twix?
#Hint: 4 + 5 + 7 + 9 = 25 total
P(NOT Hershey's and then NOT TWix) = _
b
4/25 - 5/25 = 20/625 = 4/125
4/25 * 5/24 - 20/600 - 1/30
21/25 * 20/25 - 420/625 - 84/125
21/25 * 20/24 = 420/600 - 7/10
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