Final answer:
To find the probability of choosing potatoes and ribs from the dinner specials, we need to determine the total number of dinner specials and the number of dinner specials that include potatoes and ribs.
Step-by-step explanation:
The sample space of the possible items on the menu includes:
To find the probability of choosing potatoes and ribs, we need to first determine the total number of dinner specials. Let's assume there are no dinner specials. We then count how many dinner specials include potatoes and ribs, let's say there are m such dinner specials. The probability of choosing potatoes and ribs is then given by P(potatoes and ribs) = m/n.