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Mathematics, 29.11.2021 07:20 rickespey9037

The American Red Cross says that 45% of the US population has type O blood, 40% type A, 11% type B, and the rest type AB. If 4 volunteers are giving blood, what is the probability that at least one volunteer is type B?

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The American Red Cross says that 45% of the US population has type O blood, 40% type A, 11% type B,...
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