A restaurant chain has noticed 40% of diners order the dessert special if there is a promotion related to their meal. If there are 200 diners in one evening, can we assume this p-bar distribution is normal, to determine P(more than 100 (50%) desserts will be ordered)? Yes, because np>5 and n(1-p)>5. Yes, because 100>30. O Yes, because 200>30. O No, there is not enough information.

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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.