A survey of 200 people was conducted to find out their blood group. It was
found that 50 people had type “A” blood, 65 had “B” blood type, 70 had “O”
blood type and 15 had type “AB” blood. If a person from this group is
selected at random, what property or concept you will apply to select a
person at random who has blood type “O”. Find the possibility of the same.
Explain properly to support your answer with the appropriate formula.
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