Question

A group of 200 people are asked to write their blood group: 50 have A type, 65 have B type,
70 have O type and 15 have AB type. What is the probability that a person?
a) has A type? b) Has A or AB type? c) Does not have O type?

Answer 1

⇒Number of people having o blood type = 70

Total number of people = 200

We know

P(E) = Events /subject

= 70/200

= 7/20

So probabilty of people having o blood is 7/20

Answer 2

Step-by-step explanation:

A group of 200 people are asked to write their blood group: 50 have A type, 65 have B type,

70 have O type and 15 have AB type. What is the probability that a person?

a) has A type? b) Has A or AB type? c) Does not have O type. Answer is (b).