show that in a group of 8 children,at least two of them are born in same day in a week
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Answered by
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Answer:
if 8 children are borned. so, the two borned the same day.
the correct answer is 6....
Step-by-step explanation:
8-2=6
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Answered by
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The chance of SELECTED two people(but not three) that are born on the same day is 1* 1/7 - 1/7*1/7 =6/49 Now we have 3 chooses 2 = 3 possible pairs, so the probability that any PAIR(but not all three) that are born on the same day is 3* 6/49 = 18/49.
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