The owner of a restaurant serving continental-style dishes has a business objective to learn more about customer demand patterns over the weekend (Friday through Sunday). The data of 630 clients on the type of dish ordered were collected, which were organized in the following table:

TYPE OF PLATE NUMBERS OF PLATES SERVED

BEEF 187

CHICKEN 103

COMBINE 30

DUCK 25

FISH 122

PASTA 63

SEAFOOD 74

LAMB 26

TOTAL 630

A. Build a summary table with the percentages for the types of dishes organized. B. Construct a bar graph and a circle graph for these data. C. What conclusions might the restaurant owner draw based on these data?

Exercise 2

Suppose that the owner of the restaurant in the previous exercise also wants to study the demand for desserts during the same period. The employer decides that, in addition to study if a dessert was ordered, he will also examine the gender of the Individual and if this he ordered a main dish with beef. Data from 600 teeth were obtained and organized in the following contingency tables:

GENDER

ordered dessert	MEN	FEMALE	TOTAL
SI	40	96	136
NO	240	224	464
TOTAL	280	320	600

Main Dish with Beef

ordered dessert	SI	NO	TOTAL
si	71	65	136
no	116	348	464
total	187	413	600

For each of the two contingency tables. Build contingency tables with: a) percentages based on the grand total, b) percentages based on the total of the columns and c) percentages based on the total of the rows.