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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?

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Question

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? 

Sum
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Solution

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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Chapter 25: Probability - TEST YOURSELF [Page 409]

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Selina Concise Mathematics [English] Class 10 ICSE
Chapter 25 Probability
TEST YOURSELF | Q 10. | Page 409
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