Answer: 35%,35/100,70 is to 200(70:200) or 35 is to 100 (35:100)
Sunday, January 23, 2011
Carlo R's question.
Question:The blood groups of 200 people is distributed as follows: 50 have type A blood, 65 have Bblood type, 70 have O blood type and 15 have type AB blood. If a person from this group is selected at random, what is the probability that this person has O blood type?
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