'If there are 3 people in a room, what is the probability that no two of them celebrate their birthdays on the same month of the year? 0.23 0.57 0.64 0.76'
Added by Rafael R.
Step 1
Since there are 12 months in a year, each person can have their birthday in any of the 12 months. Therefore, the total number of possible combinations is 12 x 12 x 12 = 1,728. Show more…
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Question: There are 3 people in a room. What is the probability that exactly two of them share a birth month (they were born in the same month of the year, although not necessarily in the same year)? You may assume that the 3 people are unrelated, and that their birthdays are independent. Assume also that a given person is equally likely to be born in any of the 12 months of the year.
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