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OpenStudy (anonymous):
ok so heres the question, It is estimated that one third of the general population has blood type A+.? If a sample of 9 people is selected at random, find the following probabilities. (Round your answers to four decimal places.) (a) Exactly 3 of them have blood type A+? step by step please (b) At most 3 of them have blood type A+?
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OpenStudy (anonymous):
immediate help needed
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