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7. A manufacturing company has three factories: X, Y, and Z. The daily output of each is shown here.

Factory X Factory Y Factory Z
TVs 18 32 41
Stereos 56 40 13

If one item is selected at random, find these probabilities.

a. It is a TV

b. It was manufactured at Factory Y

c. It was manufactured at factory X or is a stereo

d. It was manufactured at factory Y or factory Z

e. It is a TV or was manufactured at factory Z.

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