1. The probability that one of the diners orders fish = number of diners who ordered fish / total number of diners
p1=45/100=0.45
2. The probability that one of the diners is wearing dress= number of diners wearing dress/ total number of diners
3. p2=14/100=0.14
The probability that one of the diners ordered the fish or is wearing a dress is: p=0.45+0.14=0.59