Distinct birthdays represented
In a room of 10 people, what is the expected number of distinct birthdays represented (365 equally likely days)? (to 2 decimals)
Show hints (2)+
- Indicator per day of the year.
- P(day represented) = 1 − (364/365)^n.
Answer
Reveal answer →Final answer
9.88 (± 0.05)
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Interview format: Hedge Fund Quant, Numerical Reasoning Tests