A retail men's clothing store owner buys from the three companies: X, Y and Z. The most recent purchases are shown here.
Product Company X Company Y Company Z
Shirts 33 26 41
Ties 53 23 38
If one item is selected at random, find these compound probabilities.
a. It was purchased from company X or is a shirt.
b. It was purchased from company Y or company Z.
c. It is a tie or was purchased from company X.