# The following table shows the blood groups of 40 students of a class.One student of the class is chosen at random. What is the probability that the chosen student has blood group(i) O? (ii) AB?

Total number of Students: 40

Number of Students having blood group O: 14

Number of Students having blood group AB: 6

Probability P() =

1.Let P(O) be probability of selecting a student with Blood group O

P (O) =

P (O) = = 0.35

2.Let P(AB) be probability of selecting a student with Blood group AB

P (AB) =

P (AB) = = 0.15

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