Question

Human blood is grouped into 4 types. the percentages of Americans with each type are listed...

Human blood is grouped into 4 types. the percentages of Americans with each type are listed below.

O 43% A 40% B 12% AB 5%

Choose one American at random. Find the probability that this person:

a. has a type B blood

b. Has type AB or O blood

c. does not have type O blood

Math   Statistics-And-Probability   
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