Suppose that a room contains n people. What is the probability that at least two of them have a birthday on same month?
mathematics
Description
Exercise 2.
Suppose that a room contains n people. What is the probability that at least two of them have a
birthday on same month? Make a plot of probability vs number of people and find out for how many
people does the probability becomes greater than 0.5 and 0.9.
Sixty percent of the students at a certain school wear neither a ring nor a necklace. Twenty percent
wear a ring and 30 percent wear a necklace. If one of the students is chosen randomly, what is the
probability that this student is wearing
