104 people seated at different tables in a Mexican restaurant were asked if their party had ordered any of the following items: nachos, chili con queso, or quesadillas. The following is what was found:  11 people had ordered all three of these items.
 41 people had ordered quesadillas.
 50 people had ordered nachos
 40 people had ordered chili con queso.
 13 people had ordered nachos and quesadillas.
 26 people had ordered nachos and chili con queso.
 20 people had ordered quesadillas and chili con queso.
Fill in the Venn diagram based on the information above.
Orders of People at Mexican Restaurant
1. How many people ordered quesadillas and chili con queso but did not order nachos?
2. How many people ordered just nachos?
3. If a person is chosen at random, what is the probability that they ordered chili con queso?
4. If a person is chosen at random, what is the probability that they did not order any of these items?
5. Given that a person ordered nachos, what is the probability that they also ordered quesadillas?
6. Given that a person ordered quesadillas and chili con queso, what is the probability that they also ordered nachos?
7. If a person is chosen at random, what is the probability that they ordered at least 2 of the items?
Extension: Draw a Venn diagram that contains four categories that contain all possible combinations.