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प्रश्न
The probability that two boys do not have the same birthday is 0.897. What is the probability that the two boys have the same birthday?
बेरीज
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उत्तर
P(do not have the same birthday) + P(have same birthday) = 1
0.897 + P(have same birthday) = 1
P(have same birthday) = 1 – 0.897
P(have same birthday) = 0.103
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