Mathematics
cc8970
2016-04-27 03:10:27
Find the probability that 4 randomly selected people all have the same birthday. Ignore leap years. Round to eight decimal places.
ANSWERS
ElizabethLand
2016-04-27 06:35:05

The number of days of not leap years is 365. So, the number of different variations of birthdays for 4 people is 365 * 365 * 365 * 365 = (365)^4 The probability that all of them be one specific day is 365 / (365)^4 = 1 / (365)^3 ≈ 0.00000002. Answer: 0.00000002

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