The blood group of 30 students of a class were recorded as follows: Blood Group A B AB O Number of students 9 11 4 6 If a student is chosen at random from this class, what is the probability that the chosen student has blood group a)O b)A c)AB d)B
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Total = 9+11+4+6 = 30
Step-by-step explanation:
(a) P(O) = 6/30 = 1/5
(b) P(A) = 9/30= 3/10
(c) P(AB) = 4/30= 2/15
(d) P(B) = 11/30
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