Question

he blood groups of 20 students of a class are recorded as below:
B,A,B,O,AB,O,A,AB,O,B,B,AB,AB,O,A,O,A,B,AB AND O
A student is selected at random. Find the probability that his blood group is:
(i) A (ii) B (iii)AB (iv)O

Answer 1

Answer:

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Answer 2

Answer:

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Step-by-step explanation:

(I) no of students with A blood group = 4

P(E)= 4/20 = 1/5

(ii) no of students with B blood group = 5

P(E) = 5/20 =1/4

(iii) no of students with AB blood group = 5

probability = 5/20 =1/4

(iv) no of students with O blood group = 6

P(E) = 6/20 = 3/10

∆ hope it helped ∆