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.