probability that the first three people were born in different months, but the fourth was born in the same month as the first?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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2 Birth month paradox
Four people decide to share the month that they were bo (to simplify calculations, assume
that all twelve months in the year are equally likely).
What is the probability that the first three people were born in different months, but the fourth
was born in the same month as the first?
Transcribed Image Text:2 Birth month paradox Four people decide to share the month that they were bo (to simplify calculations, assume that all twelve months in the year are equally likely). What is the probability that the first three people were born in different months, but the fourth was born in the same month as the first?
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