Percentage distribution of blood

Reference no: EM13963682

Suppose that there are 40 students in a statistics class and their blood type follows the percentage distribution given in Exercise.

(a) If we randomly select two students from this class, what is the probability that both will have the same blood type?

(b) If we randomly select two students from this class and it is observed that the ?rst student's blood type is B+, what is the probability that the second student's blood type is O+?

Reference no: EM13963682

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