People are arriving at a party one at a time. While waiting for more people to arrive they enter

Name: People are arriving at a party one at a time. While waiting for more people to arrive they entertain themselves by comparing their birthdays. Let X be the number of people needed to obtain a birthday match, i.e., before person X arrives there are no two people with the same birthday, but when person X arrives there is a match. Assume for this problem that there are 365 days in a year, all equally likely.
Uploaded: 2022-02-07T15:36:33-08:00
Duration: 3 min 53 s
Channel: Cheng Zhang

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Cheng Zhang · Accepted Answer

Step 1: Determine the probability mass function for the random variable X, which represents the

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