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September 17, 2014

Homework Help: math

Posted by bria on Thursday, July 12, 2012 at 8:03am.

Suppose 48% of the general population of thw world has blood type O, 27% blood type A, and 23% blood type B.

a. what is the probability that someone has type AB blood( assume that there are only four blood types?

b. Of tjere are 30 people in a room,how many would you expect to have type A blood?

I got for the first answer a 2/27= 0.07 b. 27/30=0.9, I am not sure if this correct.

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