Mathematics, 15.11.2019 02:31, xandraeden32

Agroup of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 probability of having type 'a'.what is the probability that a student has type 'o' or type 'a' blood and why?

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Agroup of students is donating blood during a blood drive. a student has 9/20 probability of having...