# probability of expected birthdays

There are 25 students in a probability class. Assume that there are 365 days in each year, and that the birthrate is constant throughout the year.

(a) What is the expected number of days that are the birthday of exactly one student in the class?

(b) What is the expected number of days that are the birthdays of at least two students in the class?

https://brainmass.com/statistics/probability-density-function/probability-expected-birthdays-563161

#### Solution Summary

The solution gives detailed steps on calculating the expected number of days that are the birthday of exactly one student or at least two students in the class. All formula and calculations are shown and explained.

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