Question

The blood groups of 200 people are distributed as follows: 40 have type A blood, 75 have type B blood, 60 have type O blood, and 25 have type AB blood. If a person from any of the group is selected at random, what is the probability that this person has an O blood type? How about the AB blood type? I need solution and explanation ASAP

Answer 1

Answer:

Number of people have blood group A: 50

Number of people have blood group B: 65

Number of people have blood group O: 70

Number of people have blood group AB: 15

Total people: 200

Required probability:

P=20070=207