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1000 families with 2 children were studied and the following data was collected.Number of boys in the family012Number of families270415315What is the probability that the family has at least one boy?

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1000 families with 2 children were studied and the following data was collected.<br><table style='width: 100%; text-align: center;'><tr><th>Number of boys in the family</th><td>0</td><td>1</td><td>2</td></tr><tr><th>Number of families</th><td>270</td><td>415</td><td>315</td></tr></table><br>What is the probability that the family has at least one boy?






 
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