To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained. 132 students ate breakfast. 175 students ate lunch. 270 students ate dinner. 69 students ate breakfast and lunch. 111 students ate breakfast and dinner. 90 students ate lunch and dinner. 53 students ate all three meals. How many students ate (a) At least one meal in the cafeteria?= __students (b) Exactly one meal in the cafeteria?= __students
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained.
175 students ate lunch.
270 students ate dinner.
69 students ate breakfast and lunch.
111 students ate breakfast and dinner.
90 students ate lunch and dinner.
53 students ate all three meals.
How many students ate
__students
(b) Exactly one meal in the cafeteria?=
__students
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