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People with O-negative blood are called “universal donors” because O-negative blood can be given to anyone...

People with O-negative blood are called “universal donors” because O-negative blood can be given to anyone else regardless of recipient’s blood type. About 6% of people have type O-negative blood. A clinic is running a blood drive. If at least 220 O-negative donors give blood, the clinic will have sufficient O-negative blood for the coming month. If 4000 donors come to the blood drive, what’s the probability that the clinic will not have sufficient O-negative donors?

Math   Statistics-And-Probability   
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TOPIC:Normal approximation to the Binomial distribution and finding the required probability.

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