Mathematics, 19.10.2019 00:10 AleOfficial101
Blood type ab is the rarest blood type, occurring in only 4% of the population in the united states. in australia, only 1.5% of the population has blood type ab. suppose a random sample of 50 u. s. residents and 40 australians is obtained. consider the random variables described below: x: the number of u. s. residents with blood type ab y: the number of australians with blood type ab what is the probability that exactly 2 of the u. s. residents have blood type ab? (note: some answers are rounded) 0.2762 0.04 0.1334 0.0988 0.2646
Answers: 1
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Blood type ab is the rarest blood type, occurring in only 4% of the population in the united states....
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