Birthday Problem For this problem, assume that a year has 365 days. (a) In how many ways can 18 people have different birthdays? (b) What is the probability that no 2 people in a group of 18 people have the same birthday? (c) What is the probability that at least 2 people in a group of 18 people have the same birthday?
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.
Birthday Problem For this problem, assume that a year has
365 days.
(a) In how many ways can 18 people have different birthdays? (b) What is the probability that no 2 people in a group of
18 people have the same birthday?
(c) What is the probability that at least 2 people in a group
of 18 people have the same birthday?
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