Assume that if we pick a person at random from a very large group and determine...
Assume that if we pick a person at random from a very large
group and determine the day of the
week on which they were born, there is an equal chance that it is
each possibility (Monday, Tuesday,
etc.). Suppose seven people are chosen from the group at random.
What is the chance that no two
persons were born on the same day of the week?
Homework Answers
chance that no two
persons were born on the same day of the week =P(all 7 people are
born on different days of week)
=7P7 /77 =7!/77 =5040/823543 =720/117649
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